Urticaria is complicated to diagnose by its symptomatic overlap with other skin conditions and the frequent misclassification ...

Migratory polyarthritis is the most common symptom in acute rheumatic fever. Subcutaneous nodules arise over the bones and tendons, as well as a rash that starts on the trunk and extends to the limbs.

Scarlet fever, or scarlatina, is a bacterial infection that causes a distinctive bright red sandpaper-like rash.

Rheumatic fever can lead to painful and inflamed joints, a specific type of rash, or heart valve damage, according to medical experts. If the bacteria from a strep throat spreads through the body ...