Toenail fungus, also called onychomycosis, is a common fungal infection of your toenail. The most noticeable symptom is a white, brown, or yellow discoloration of one or more of your toenails. It may spread and cause the nails to thicken or crack. Sandal season or not, toenail fungus typically isn’t what you want to see when you look at your feet. Luckily there are many treatments you can try.

Globally, fungal infections affect about 15% of the population and affects one out of five adults.[2][21] Athlete's foot is common in individuals who wear unventilated (occlusive) footwear, such as rubber boots or vinyl shoes.[21][23] Countries and regions where going barefoot is more common experience much lower rates of athlete's foot than do populations which habitually wear shoes; as a result, the disease has been called "a penalty of civilization".[35] Studies have demonstrated that men are infected 2–4 times more often than women.[2]
Red or black nails due to a hematoma, or blood under the nail, usually occur from trauma (like whacking yourself on the thumb with a hammer). The discolored area will grow out with the nail and be trimmed off as you trim your nails. If you have a black spot under your nail that was not caused by trauma, you may want to see a dermatologist or a podiatrist if it involves a toenail to make sure it is not melanoma (a type of skin cancer associated with pigmented cells). A simple biopsy can rule out malignancy (cancer).
Prescription oral antifungals such as terbinafine (Lamisil) or fluconazole (Diflucan) are traditionally used to treat toenail fungus. These treatments are often effective, but they may cause serious side effects ranging from upset stomach and dizziness to severe skin problems and jaundice. This may be why many people try home remedies instead. Here are 10 of these popular at-home treatments.
Candida albicans is a common yeast that grows inside the human body. In healthy people, other bacteria and immune cells keep this yeast under control so it doesn’t cause any problems, but in some people candida can become overgrown and cause infections in various areas. One of the ways candida shows up is through the skin where it can cause noticeable reactions or infections. Other ways are on the mouth, vagina and anus.

For some people, a fungal infection of the nails can be difficult to cure and the first round of medication might not work. The nail infection can’t be considered cured until a new nail that’s free from infection has grown in. Although this indicates that the nail is no longer infected, it’s possible for the fungal infection to return. In severe cases, there may be permanent damage to your nail, and it may have to be removed.
Nail infections occur more often in men than in women, and the infections are found in adults more often than in children. If you have family members who often get these types of fungal infections, you’re more likely to get them as well. Older adults are at the highest risk for getting fungal infections of the nails because they have poorer circulation and their nails grow more slowly and thicken as they age.

No one knows where a specific person catches the fungus, as it is everywhere. However, since the fungus does thrive in warm moist areas (like sweaty feet), there are certain areas one should avoid or use with caution. Shower floors, locker rooms, and swimming pools are suspected of being sources of the fungus, although there are no studies proving this fact. Nail polish and acrylic nails also make the nail less "breathable" and make the nail more susceptible to fungal infection. Fungi are everywhere -- in the air, the dust, and the soil. Hygienic measures such as spraying socks and footgear sound sensible, and perhaps these measures can even help a little bit. However, avoiding tight, nonbreathing shoes or steering clear of athletic facility floors may very well be the best prevention available. Daily washing of the feet and drying between the toes can help to prevent nail fungus. The fungi carried on the coats of pets, like cats and dogs, don't often cause nail fungus. Wearing white socks does not help.


Oral medications include terbinafine (76% effective), itraconazole (60% effective) and fluconazole (48% effective).[2] They share characteristics that enhance their effectiveness: prompt penetration of the nail and nail bed,[23] and persistence in the nail for months after discontinuation of therapy.[24] Ketoconazole by mouth is not recommended due to side effects.[25] Oral terbinafine is better tolerated than itraconazole.[26] For superficial white onychomycosis, systemic rather than topical antifungal therapy is advised.[27]

Topical agents such as amorolfine (Loceryl 5% nail lacquer; applied once or twice a week) and ciclopirox (Penlac 8% nail lacquer; applied daily) are usually prescribed for mild forms of the disease, but the treatment periods are long and their efficacy is somewhat limited due to poor nail plate penetration. These medications kill fungi by interfering with their cell membranes, which leads to their death.


Ringworm, also called tinea corporis, is not a worm, but a fungal infection of the skin. It can appear anywhere on the body and it looks like a circular, red, flat sore. It is often accompanied by scaly skin. The outer part of the sore can be raised while the skin in the middle appears normal. Ringworm can be unsightly, but it is usually not a serious condition.


The causative pathogens of onychomycosis are all in the fungus kingdom and include dermatophytes, Candida (yeasts), and nondermatophytic molds.[2] Dermatophytes are the fungi most commonly responsible for onychomycosis in the temperate western countries; while Candida and nondermatophytic molds are more frequently involved in the tropics and subtropics with a hot and humid climate.[10]
Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

If the fungal nail infection is severe, tablets can be used in combination with nail polish or cream. For example, if the nail is very thick, urea cream can be used (in addition to taking tablets) to gradually remove or partially file off the affected nail. Combining these treatments may also be an option if there are large collections of fungi beneath the nail. Another option for severe fungal nail infections is professional medical footcare. If the nail is filed off, it’s important to ensure good hygiene and disinfect the area, because the removed nail tissue could contain infectious fungal spores.
Onychomycosis – commonly known as toenail fungus – is characterized by inflammation, pain, and swelling of the toe, as well as yellowing, thickening, and crumbling of the nail itself.  Toenail fungus can be the result of abnormal pH of the skin, continuous exposure to moisture, wearing synthetic socks, compromised immune system, sweat build-up in shoes, poor foot hygiene, or weak circulation such as that caused by diabetes.
Oral antifungal therapy has a high cure rate, depending on the medication. It can take nine to 12 months to see if it has worked or not, because that is how long it takes for the nail to grow out. Even when therapy works, the fungus may come back. Currently, an oral antifungal therapy is considered the best treatment for toenail fungus because of higher cure rates and shorter treatment duration compared to topical therapy.
Because fungus needs an acidic environment to flourish, alkaline baking soda actually prevents toenail fungus from spreading by creating an uninhabitable environment for it.  Borax is a naturally occurring mineral that is also a powerful fungicide.  These two combined create a remedy that can cure nail fungus fast.  Mix equal parts borax powder and baking soda with just enough water to form a paste.  Wet feet and gently rub the mixture onto infected nails.  Do this twice daily and continue for at least two weeks after fungus appears to have cleared up.
Unfortunately, athlete’s foot is highly contagious and the fungus can easily spread to the toes and toenails, causing infections. There are more than three million cases of toenail fungus in the US every year. Not all toenail infections are from athlete’s foot or even from a fungus; some are caused by yeast or mold. These are much harder to cure than fungal infections.
Psoriasis is a long-term skin condition that may cause large plaques of red, raised skin, flakes of dry skin, and skin scales. There are several types of psoriasis, including psoriasis vulgaris, guttate psoriasis, inverse psoriasis, and pustular psoriasis. Symptoms vary depending on the type of psoriasis the patient has. Treatment of psoriasis may include creams, lotions, oral medications, injections and infusions of biologics, and light therapy. There is no cure for psoriasis.
Sporty, fitted sandals and other "toning shoes" are designed for a more intense workout while walking. The American Council on Exercise says there's no evidence to support that claim, but they may have other benefits. The thick sole keeps your foot off the ground and away from debris. And Brenner points out, "they do have really good arch support." Several have a seal of approval from the American Podiatric Medical Association.

A 2003 survey of diseases of the foot in 16 European countries found onychomycosis to be the most frequent fungal foot infection and estimates its prevalence at 27%.[32][33] Prevalence was observed to increase with age. In Canada, the prevalence was estimated to be 6.48%.[34] Onychomycosis affects approximately one-third of diabetics[35] and is 56% more frequent in people suffering from psoriasis.[36]
An active substance in olive leaf extract, oleuropein, is thought to have antifungal, antimicrobial, and immune-boosting abilities. You can apply olive leaf salve directly to nail fungus or ingest in capsule form. According to this review, taking one to three olive leaf capsules with meals twice daily is more effective than olive leaf salve in treating toenail fungus. Drink plenty of water throughout this treatment. Find olive leaf extract capsules or oil on Amazon.
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