Our Symptom checker provides clinical advice on what to do next based on your symptoms.
Hives is a skin rash that is often triggered by an infection or allergy. Learn more about hives rash (urticaria) causes, symptoms and treatment.
Cat and dog allergy
Allergies to cats and dogs are common, and symptoms can be severe. Learn more about how to live with a pet allergy.
Penicillin is the name given to a widely-used group of antibiotic drugs. Penicillin can have side-effects, and some people suffer allergic reactions. Find out more here.
Itchy skin, or pruritis, is a common irritation that can be very frustrating. Understand the different types of itchy skin and how to ease the discomfort.
Antihistamine medications help ease allergy symptoms. Read more about how they're used to treat conditions like hay fever and asthma.
Allergies to seafood
Seafood allergy is complex, and 4-in-5 people will have it for life. Find out more about the symptoms and diagnosis of seafood and fish allergy.
Some people have an allergic reaction to a normally harmless ingredient or type of food. This immune system response can range from mild to severe.
Allergies and hypersensitivities
An allergic reaction occurs when the immune system overreacts to a substance. Find out about common allergies, their symptoms and treatments.
Temazepam is a medicine that is usually used to treat sleeping problems or insomnia. To get temazepam, you will need a prescription written for you by a doctor.
Cefalexin is used to treat bacterial infections in various parts of the body. This page explains how cefalexin works, its risks and other treatment options available in its place.