Chronic itching without a visible rash is known as pruritus sine materia. While the symptom may appear harmless, it can ...

Shingles and scabies can both cause inflamed, blistered skin rashes, but their causes, symptom patterns, and treatment are very different. The primary symptom of both shingles and scabies is a skin ...

Erythema migrans and erythema multiforme both cause target- or bull’s-eye-shaped lesions. Erythema migrans is due to Lyme disease. Erythema multiforme is an immune-mediated hypersensitivity skin ...

We usually think of COVID-19 as a viral illness that causes respiratory symptoms, like congestion, sore throat and a cough. But, like a surprising amount of other viruses, the coronavirus can also ...

A rash or skin irritation can develop anywhere that skin folds exist on the body. These folds can trap heat, moisture, bacteria, and yeast. Combined with chafing, this leads to a condition called ...