• Ringworm (Tinea Corporis)
(A common fungal skin infection that causes a ring-shaped rash)
What Is Ringworm (Tinea Corporis)?
Despite the name, ringworm is not caused by a worm.
It is a common fungal skin infection caused by dermatophyte fungi that grow in the outer layer of the skin.
“Tinea corporis” refers to ringworm affecting the:
- Arms
- Legs
- Chest
- Back
- Trunk
The infection is common in both children and adults.
What Does Ringworm Look Like?
Ringworm often appears as:
- A circular or ring-shaped rash
- Red, pink, or darker patches
- Raised or scaly border
- Central clearing (“ring” appearance)
- Itching or irritation
Some rashes may have multiple rings or slowly enlarge over time.
How Does Ringworm Spread?
Ringworm spreads through:
- Skin-to-skin contact
- Shared towels, clothing, or sports equipment
- Contact with infected pets
- Locker rooms or gym surfaces
It is contagious until properly treated.
How Is Ringworm Diagnosed?
A dermatologist can often diagnose ringworm during a skin exam.
Sometimes additional testing may be performed, including:
- Skin scraping
- Microscopic examination
- Fungal culture
This helps confirm diagnosis and rule out eczema, psoriasis, or other rashes.
How Is Ringworm Treated?
Mild cases:
- Prescription or over-the-counter antifungal creams
More widespread or stubborn infections:
- Oral antifungal medication
Important:
Steroid creams alone can worsen fungal infections and may make the rash less recognizable.
Pre-Op Instructions
(Before evaluation or treatment)
- Avoid applying heavy steroid creams unless prescribed
- Keep the area clean and dry
- Avoid scratching the rash
- Tell us if:
- The rash is spreading quickly
- Pets at home have skin problems
- Other household members have similar rashes
- You recently used steroid creams
Arrive with clean skin and avoid applying ointments right before the appointment if possible.
Post-Op Instructions
(After starting treatment)
What’s normal
- Gradual improvement over several weeks
- Mild dryness or peeling during healing
- Itching improving before rash fully disappears
Aftercare
- Use medications exactly as prescribed
- Keep skin dry and clean
- Wash towels, clothing, and bedding regularly
- Avoid sharing personal items
- Continue treatment for the full recommended duration
Call the office if
- The rash worsens
- New areas continue appearing
- Pain, pus, or fever develops
- No improvement occurs after treatment