Fungal skin infections
Fungal skin infections happen when certain fungi grow on or in the skin. Athlete's foot and some yeast infections are familiar examples. The location, type of fungus, and a person's health can affect the condition.
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Ringworm is one common fungal skin infection, despite a name that suggests a worm. It may cause a dry, itchy, scaly rash, sometimes with a ring shape. The appearance can differ on the face or scalp, and color changes vary with skin tone. [2]
A suspected fungal infection on the scalp needs a clinician's assessment; scalp ringworm can cause patchy hair loss and may need prescription treatment. Seek review if a recommended treatment has not helped, or if a health condition or medicine weakens your immune defenses. [2]
ALSO WORTH KNOWING [1]
A rash cannot be assumed to be fungal based on this description; clinical assessment may be needed. [1]
THE CLINICAL CONVERSATION
Describe where the rash began, whether it has spread, and any contact with an affected person or animal. Ringworm can spread through shared towels, combs, and bedding. A clinician can assess the pattern and determine what treatment fits the location and your health. [2]
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A FEW STRAIGHT ANSWERS
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Avoid sharing towels, combs, or bedding, and wash your hands after touching animals. Scratching can spread the infection to other areas of your own skin. [2]
No. Different fungi can affect skin, nails, or other affected body sites. The location, symptoms, and overall health help determine which type of evaluation is appropriate. [1]
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References checked November 7, 2026. This content has not been clinically reviewed for Northguard.
