Persistent skin rashes are often caused by allergic reactions to everyday products. Learn how dermatology patch testing identifies skincare, cosmetic, and environmental allergens responsible for contact dermatitis.

The ABCDE rule helps identify warning signs of melanoma when checking your skin at home. Learn what changes in moles to look for and when to seek professional skin cancer screening.

Red, itchy, or irritated skin can have many causes. Dry skin, eczema, psoriasis, and allergic reactions often appear similar, which can make self-diagnosis difficult. This guide explains how dermatologists distinguish between common inflammatory skin conditions and when to seek specialist assessment.