Allergies

This widely known allergy to pollen causes irritating symptoms such as sneezing, itchy eyes and runny noses.

A food allergy is when your body reacts to a specific food, causing your immune system to trigger an abnormal response; the most common foods that trigger allergic reactions include fish, peanuts, milk and wheat.

Any medication is capable of inducing an allergic reaction; a drug allergy occurs when your immune system has an abnormal reaction to a specific drug.

Anaphylaxis is a much more serious allergic reaction which can be life-threatening. The most common anaphylaxis reactions are to insect stings, medications, latex and foods.

Urticaria (also known as hives) causes swollen pale red bumps that appear on the skin all of a sudden. It can often cause burning, stinging and itching of the affected area.

Asthma is an inflammatory disease of the airways to the lungs. It makes breathing difficult and can make some physical activities challenging

Angiodema is swelling of the lower layer of skin and tissue just under the skin. It is often associated with hives.

Eczema is a condition that causes skin to become cracked, dry and itchy. For most people it is a long-term condition, however, it can improve over time with proper treatment.