Fungal Nails (Toenail Fungus): What Works, What Doesn’t, and Treatment Options

Thick, yellow, brittle toenails are often caused by a fungal infection (onychomycosis). It can be stubborn—and many over-the-counter products don’t penetrate the nail well enough to clear it.

How to tell if it’s fungal nails

• Thickened or crumbly nail

• Yellow/brown discoloration

• Debris under the nail

• Nail lifting from the nail bed

• Slowly worsening appearance over months

Treatment options

The best treatment depends on severity, how many nails are involved, and your medical history.

• Topical prescriptions (best for mild cases)

• Oral antifungals (often most effective; requires medical screening)

• In-office debridement to reduce thickness and improve penetration

• Prevention plan to reduce recurrence

How to prevent it from coming back

• Keep feet dry; change socks after sweating

• Use antifungal powder/spray in shoes when needed

• Wear shower shoes in gyms/pools

• Treat athlete’s foot promptly

• Disinfect or replace old nail tools

If you’re in Altamonte Springs or nearby Orlando areas (Maitland, Longwood, Winter Park, Dr. Phillips, Lake Nona, Windermere), call (407) 259-4817 or book online for an evaluation.