Arkansas Esthetician Practice Exam

A wheal formation on the skin is typically caused by inflammation from either insect bites or an allergic reaction. Bacterial and viral infections typically cause pustules or bumps on the skin, rather than a raised, red, and itchy wheal. Fungal infections usually manifest as a scaly or red rash on the skin. The key to identifying a wheal is the raised, swollen appearance and the accompanying sensation of itching and/or burning.