The infection is considered cured when new nail growth is healthy as thenail affected by fungal infectiongrows out.
When the new growth from the base is healthy, the infection is considered clinically cured.
Toenail Fungus Heals in Stages of Nail Regrowth
Toenails that have a fungal infection typically become discolored.

Illustration by Julie Bang for Verywell Health
They often start with a white spot, and can turnyellow, green, or brown.
It takes about 12 to 18 months for toenails to be completely replaced by new growth.
Treatment Not Working: Toenail Fungus Sticking Around
Toenail fungal infectionscan be difficult to treat.
Oral medications tend to be more effective than topical.
Infection is more likely to return in people who have conditions such as diabetes.
Untreated, the infection can spread to other areas such as other nails.
Fungal skin infections are also associated with fungal nail infections.
This prevents the nail from growing back.
The infection is considered cured when a healthy nail is growing from the base of the nail.
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