Aug 24, 2024 · Allergic reactions vary from person to person. They can range from minor irritation to a life-threatening emergency called anaphylaxis. While most allergies can't be cured, …

Apr 1, 2025 · Description Meningococcal vaccine is an active immunizing agent used to prevent infection caused by certain groups (A, B, C, W, and Y) of meningococcal bacteria (Neisseria …

Nov 9, 2024 · The most common symptoms of drug allergy are hives, rash and fever. But a drug allergy also may cause serious reactions. This includes a severe, life-threatening condition …

Aug 30, 2024 · Food intolerance and other reactions A food intolerance or a reaction to another substance you ate may cause the same symptoms as a food allergy does — such as nausea, …

Jun 21, 2025 · Overview A blood transfusion is a common procedure for receiving donated blood or components of blood. The blood is delivered through a narrow tube placed within a vein. A …

Monosodium glutamate, also called MSG, is used to make food taste better. Glutamate is a form of the amino acid glutamic acid. Both are naturally in food such as cheese, tomatoes, …

Jul 19, 2024 · Causes of sun allergy include immune system reactions to sunlight, certain medications and chemicals that make the skin more sensitive to the sun. It isn't clear why …

Apr 16, 2025 · Anaphylaxis is a severe, potentially life-threatening allergic reaction. It can occur within seconds or minutes of exposure to something you're allergic to, such as peanuts or bee …

Aug 11, 2025 · In some people, a mold allergy is linked to asthma. If mold allergy is linked to asthma, mold exposure can cause restricted breathing and other airway symptoms. If you …

Oct 24, 2024 · Learn about symptoms, treatment, self-care tips and prevention of bee stings, which in some people cause severe allergic reaction.