What it is
Fungal infections such as ringworm (tinea) cause itchy, often ring-shaped, red patches, commonly in the groin, waist, underarms, feet and body folds.
Other skin infections, bacterial or viral, can look similar, which is why examination matters.
Common factors
- Heat, sweat and humidity
- Tight or damp clothing
- Sharing towels or clothes; close contact with an infected person
- Using over-the-counter steroid-combination creams
- Diabetes or reduced immunity
When to see a dermatologist
- A rash is spreading or keeps coming back
- You’ve used creams that helped briefly, then the rash returned bigger
- Several family members have similar itching
- Fever, pus, or rapidly worsening redness. Seek care promptly
At your consultation
- 1The doctor examines the rash and asks what you’ve applied so far.
- 2The diagnosis and the reason a full course matters are explained.
- 3You get practical advice on clothing, hygiene and preventing spread at home.
Options that may be considered
Which, if any, is right for you is decided by the doctor after examining you.
- Prescription antifungal treatment for the right duration
- Guidance to prevent recurrence and spread to family members
Realistic expectations
- Completing the full course matters, even after itching stops.
- Recurrent or widespread infections may need a longer plan and follow-up.
Questions
Why does my ringworm keep coming back?
Common reasons include stopping treatment early, steroid-combination creams, and re-infection from clothes or family members. The doctor will look at all of these with you.