If your dog’s face is puffy, firm, red, or suddenly swollen, it could be a sign of an underlying issue that needs attention.

According to the American College of Allergy Asthma and Immunology, nearly one in three U.S. adults report having a seasonal ...

Discover 11 common skincare ingredients that can trigger allergic reactions. Learn to identify and avoid irritants for ...

Medically reviewed by Femi Aremu, PharmD Skin rashes can have many different causes, one of which is medications. The ...

Discover how allergies can cause swollen lymph nodes, and learn to distinguish between normal immune responses and warning signs that require medical attention.

Medically reviewed by Daniel More, MD Allergies occur when your immune system overreacts to allergens like pet dander, pollen, mold, certain foods, or medications. Allergy symptoms may include a runny ...

Skin allergies in dogs can cause a range of uncomfortable symptoms, including itching, redness, inflammation, and hair loss. While prescription medications and treatments are commonly used, many pet ...

Symptoms of irritation, like redness, itching, or swelling, can appear almost immediately ... Several common ingredients used in shampoo are known to cause skin irritation and allergic reactions in ...

An allergic reaction to food dye can be mild or severe. A mild reaction can result in symptoms such as hives, flushing, or itchy skin. A severe reaction can cause swelling of the face or lips ...

Cellulitis is a skin infection that occurs when ... People may experience inflammation and swelling in the lymph nodes if they are allergic to their deodorant. Other symptoms of allergy may ...