In a healthy body, mast cells (the “lookout” cells of the immune system) only release histamine when they detect a foreign ...

Mild strawberry allergies can cause hives, itchy skin, and nasal congestion. Symptoms of anaphylaxis from a severe allergy may include swelling of the throat, difficulty breathing, and low blood ...

Vibratory urticaria is a rare condition that causes allergic-like skin reactions after exposure to certain types of vibration, stretching, or friction. Treatment involves trigger avoidance and ...