Fungal nail treatment: the complete guide

What is a fungal nail infection?

A fungal nail infection (medically onychomycosis, often just called nail fungus or toenail fungus) is an infection of the nail plate. The fungus, usually a dermatophyte such as Trichophyton rubrum, gets in through a small bit of damage, a rough cuticle or the skin underneath. Once there, it grows slowly and undisturbed. The nail itself is dead tissue. It has no blood vessels, no immune system and no way of defending itself.

A fungal nail isn’t a stain on the nail. It’s fungus growing inside the nail. That’s why sanding, buffing or painting over it doesn’t make a lasting difference. The cause sits deeper than the surface.

What you notice first is the look. The nail turns whiter, yellower or browner, often thicker, and it can go crumbly or powdery. You’ll see it called a fungal nail, nail fungus or toenail fungus. It’s the same condition, and we use the terms interchangeably.

Looking at fungal nails every day, we see the same pattern again and again. It starts small, on one toenail (usually the big toe), and spreads over months or years. Left untreated, the fungus stays active. Sometimes for decades.

How to recognise a fungal nail

A fungal nail rarely starts dramatically. The early signs are small: a white spot at the side of the nail, a pale yellow tinge from the tip, a nail that feels just slightly thicker than the others. It only becomes obvious later. These are the four signs we see most often.

Discolouration. White, yellow, brown or sometimes almost black. The colour sits in the nail, not on it. Filing doesn’t get rid of it.

Thickening. The nail gets thicker and harder to cut. Sometimes so thick that ordinary nail scissors won’t go through it.

Crumbling. The nail turns powdery, crumbles at the edges and can split into layers. Further along, it lifts away from the nail bed.

A change in shape. The nail curves, curls or grows unevenly. Some people also notice an unpleasant smell.

Not every discoloured nail is a fungal nail. A black nail is more often a bruise under the nail (a subungual haematoma) from pressure or a knock, and that grows out within a few months. Psoriasis, eczema and some nail injuries can also change a nail’s colour, but they behave differently. Not sure? Take the free nail test, a self-check rather than a diagnosis, or ask your GP, who can send a small nail sample to a lab. There’s more on the early signs in our guide to fungal nail symptoms.

What happens if you do nothing?

A fungal nail won’t clear up by itself. It’s the most stubborn myth around, and sadly it isn’t true. Without treatment the fungus stays, multiplies and spreads over time. First to the other toenails, then sometimes to the skin (athlete’s foot) and, occasionally, to the fingernails.

Plenty of people put it off for years, and waiting doesn’t fix it. All that time the fungus is growing deeper into the nail and reaching the nails next to it, which makes treatment longer and harder.

Putting it off has three concrete consequences. First, the nail gets thicker and harder, so anything you put on it has further to go to reach the fungus. Second, the chance of reinfection goes up, because by then the fungus is on your skin and in your shoes too. Third, for some people there’s a health risk. If you have diabetes or a weakened immune system, other infections can take hold more easily and turn out more serious than on healthy feet.

The earlier you start, the less nail there is to grow out. That’s not a sales line. It’s simple arithmetic that follows from how a nail grows.

Do home remedies work for fungal nails?

The short answer: usually not, sometimes a little, never completely. We’ve written a series of articles on the best-known fungal nail home remedies, each with the same sober conclusion. Here are the main points.

Vinegar. Vinegar lowers the pH, which makes it harder for fungi to grow. You can measure that in a lab. On a nail it’s rarely enough. The vinegar doesn’t get deep enough, and it isn’t in contact for long enough.

Tea tree oil. The one home remedy we’re more nuanced about. Lab studies show it has some activity against fungi. But the oil you buy on the high street isn’t the same concentration as in those studies, and the effect stays on the surface.

Vicks VapoRub. It contains menthol, camphor and eucalyptus oil. It feels fresh and can give a placebo effect, but it doesn’t clear an infection inside the nail plate. The research points to a very limited effect in mild cases at most.

Sudocrem, baking soda, garlic, coconut oil, hydrogen peroxide. Different mechanisms, same outcome: too superficial, too short-lived and not concentrated enough to reach fungus inside the nail.

The tricky thing about home remedies isn’t that they do nothing at all. It’s that they seem to do just enough to keep people using them for months, while the fungus carries on growing.

A common mistake is focusing only on the nail. The fungus is also in the skin around it and in your shoes. A home remedy that does nothing about those two sources can’t give you a lasting result.

How to treat a fungal nail infection: your options

In the UK and Ireland there are four main routes, roughly in the order you’d come across them. Each works differently, and each weighs effectiveness, side effects, treatment time and cost differently. The NHS and the HSE describe the same pathway.

1. A medicated nail lacquer from the pharmacist (such as amorolfine). A pharmacist can recommend a nail medicine you paint on daily or weekly. According to the NHS you use it for 6 to 12 months, and it isn’t suitable if you’re under 18, pregnant or breastfeeding. It can be enough when the infection is mild. It rarely reaches the deeper layers when more of the nail is affected.

2. Tablets from your GP (terbinafine or itraconazole). These work from the inside and can be effective when the infection is severe. Your GP may first send a nail sample to a lab. The NHS says you may need to take them for up to 6 months, with blood tests to check your liver. Possible side effects include headaches, an itchy rash, stomach ache, feeling sick and diarrhoea, and they’re not suitable for everyone, for example if you have liver or kidney problems or you’re pregnant or breastfeeding.

3. Removing the nail. A badly infected nail sometimes needs to be removed, under local anaesthetic. It isn’t a first step, and a new nail takes a long time to grow back.

4. Laser treatment. The laser heats the nail to target the fungus. It’s usually offered by private clinics rather than the NHS. Results vary widely from clinic to clinic and study to study, long-term results haven’t been studied much, and it’s expensive. Some clinics also offer photodynamic therapy, which combines a light-sensitive gel with a special lamp. Neither does anything for your skin or your shoes.

Whichever route you take, the nail still has to grow out, and the skin and the shoes still need attention. That’s the part most treatment plans leave to you. It’s also where our routine comes in.

How the tiptoe routine works

The tiptoe routine is built on years of peptide research and has three parts that close the loop together: the nail, the skin around it and your shoes. It’s a routine you do at home, alongside whatever your GP or pharmacist advises.

The nail: tiptoe naildrops. The drops contain sh-Oligopeptide-11, a patented peptide. You apply them twice a day, morning and evening, at the base of the nail, where new nail grows. It takes a couple of minutes a day. Scientific publications have been written about the peptide. If your nail is very thick, a podiatrist can thin it first.

The skin: tiptoe care foam. The fungus rarely lives in the nail alone. The skin around the nail is its second home, and if you leave that skin untreated, it can reinfect the nail. Back to square one. The care foam is a soft mousse you apply every day to your feet and between your toes. It cares for the skin where reinfection often starts.

The shoes: tiptoe protect your feet. A shoe that an infected foot has been in every day can carry the fungus for months. That’s why the routine includes a spray for your feet and the inside of your shoes, so you don’t reinfect yourself every morning.

What we see again and again: when people treat only the nail, the fungus often finds its way back from the skin or the shoes. That’s why the routine covers all three. Results vary from person to person and depend on how deep the infection goes.

The drops are fragrance-free and colour-free, and they’re for external use only. If you have diabetes, take medication or are pregnant, talk to your GP or a podiatrist before you start.

Why treat the nail, skin and shoes together?

Because a fungal nail rarely lives in the nail alone. After years of looking at nails, this is the difference between a result that lasts and one that doesn’t. The fungus you can see in the nail also lives on the skin around it (often without any symptoms) and lingers in shoes and socks and on bath mats.

A fungal nail often comes back because only the nail gets treated, while the skin between the toes and the shoes reinfect it. Treat just the nail and you can reinfect yourself every morning. The nail looks better, clear nail slowly grows in, and just when it’s nearly there, the fungus creeps back from your skin or your shoes. Six months of effort, back to square one.

In practice, the whole picture means three things side by side: something for the nail, daily care for the skin, and regular attention for the shoes you wear most. Not to make it complicated, but because those are the three places where the fungus can hold on.

How long does fungal nail treatment take?

The honest answer: months, not weeks, and for a big toenail usually longer than you’d like. The reason is how a nail grows. A toenail grows about 1 mm every 6 weeks. Fingernails grow faster. Only once the nail has grown out completely has all the affected nail been replaced, and for a big toe that takes a long time.

The NHS gives a sense of scale for medicines: pharmacy nail lacquers are used for 6 to 12 months, and GP tablets for up to 6 months. Even then, the nail still has to finish growing out afterwards.

What you see changes slowly. The affected nail won’t go back to normal. It grows out. What you see now stays visible until it’s been replaced. So if you still see discolouration after three months, you may be looking at old damage that still has to grow out.

Change shows up first at the base of the nail, where new nail grows, and moves slowly towards the tip. How long it takes depends on how deep the infection goes.

If the infection is severe or has been there for years, it can take longer, or you may need your GP’s help alongside anything you do at home. Your GP or a podiatrist can give you a realistic idea based on your nail. Not a marketing promise, just a timeline you can work with.

What does fungal nail treatment cost?

It depends on the route. Here’s a rough overview without figures, because prices change and differ from place to place.

Pharmacy nail lacquers. You buy them over the counter. Because you use them for 6 to 12 months, look at the cost of the whole course, not just the first pack.

Tablets from your GP. The medicine itself is relatively cheap, and prescription charges depend on where you live. But tablets also mean GP appointments and blood tests, so the cost in time is higher than many people expect.

Laser. Offered privately, usually as several sessions you pay for yourself, and the long-term results are uncertain.

The tiptoe routine at home. tiptoe naildrops, care foam and protect your feet are available separately, and the tiptoe starter kit brings the routine together. You’ll find current prices and contents on the product pages.

What treatment really costs isn’t just money. It’s time. A half-hearted approach that doesn’t work and has to be restarted a year later costs you twice. Above all, it costs you more months with a nail you’d rather not look at.

How to stop a fungal nail coming back

A fungal nail that has cleared up can come back if your habits stay the same. Reinfection isn’t inevitable, but it needs attention in the areas that gave the fungus room to grow the first time.

Shoe hygiene. The fungus can survive in a shoe for months. Most of us wear shoes every day, often the same pair. Try to alternate at least two pairs, so yesterday’s pair gets a full day to dry out. Spray the inside of the shoes you wear most with tiptoe protect your feet now and then, even if they look clean. And replace old trainers that never properly dry out.

Foot hygiene. Dry your feet well after a shower or a swim, especially between the toes. Avoid damp socks for long stretches (sport, rain, sweat). If your feet sweat a lot, cotton or merino socks are a better bet than synthetic ones.

Risky places. Communal showers, changing rooms, saunas and swimming pools are classic places to pick it up. Flip-flops or sliders help. Not as a fashion statement, but as a barrier.

Early signs. If you’ve had a fungal nail before, you’ll recognise the pattern sooner if it returns. Deal with small signs early instead of waiting until it spreads. The free nail test can help you decide whether what you’re seeing needs attention.

If you have sweaty feet, diabetes or a weakened immune system, or you share shoes with someone at home, it’s more likely to come back. In that case a maintenance routine with care foam and protect your feet can be worth keeping up, even after the nail has grown out.

When should you see a GP or podiatrist?

Not every fungal nail needs a professional. But it’s wise when you’re unsure, and definitely in situations where treating it yourself could backfire. Four moments when an appointment makes sense.

When you’re not sure it’s fungal. Not every discoloured nail is a fungal infection. With psoriasis or a nail injury, medicines for fungal infections won’t help. Your GP can send a nail sample to a lab to check.

When several nails are affected or the nail is very thick. The deeper and wider the infection, the more it helps to have a podiatrist (you may know them as a chiropodist) thin the nail, and your GP may suggest tablets.

When your health needs extra care. Diabetes, poor circulation, a weakened immune system and some medicines all call for extra caution. The NHS advises seeing a GP if you have diabetes or a weakened immune system, or if the infection is severe or spreading.

For children under 12. A fungal nail in a child needs a different approach from an adult’s. Get it checked by your GP before you start anything. There’s more in our guide to fungal nail infections in children.

In other cases, a home routine with tiptoe naildrops, care foam and protect your feet is often a good place to start. If you’re not happy with how it’s going, talk to your pharmacist or GP. Waiting only gives the fungus more time.

The bottom line

A fungal nail is an infection inside the nail, not on it. It won’t go away by itself, it spreads if you leave it, and it needs the whole picture: not just the nail, but the skin and the shoes too. It takes time. Not because treatment is slow, but because a nail simply grows slowly.

The tiptoe routine combines peptide drops for the nail with care for the skin and hygiene for your shoes. No tablets, no loud promises, just a routine that closes the loop. Results vary from person to person and depend on how deep the infection goes.

Not sure whether what you’re seeing is a fungal nail, or which approach suits you? Take the free nail test. If your nail is badly affected, or you have diabetes, take medication or are pregnant, the wisest first step is to talk to your GP or a podiatrist.