Acne is a very common skin problem that occurs when pores, commonly on the face, chest and upper back become clogged with sebum, dead skin cells and bacteria.

Acne scarring is a common condition that most commonly affects the skin on the face, shoulders and back, as a result of both severe and mild acne.

Anaphylaxis is a severe and potentially life-threatening reaction to a trigger such as an allergy.

Mastocytosis is a rare disease of the skin in where mast cells gather in body tissues, such as the skin, internal organs and bones.

Aspirin/NSAIDs can cause allergic reactions whose symptoms include flushing, itchy rashes (hives) and skin swelling, blocked and runny nose, acute breathlessness/asthma as well as life-threatening anaphylaxis with collapse, loss of consciousness or even death.

Rashes are any change we notice on our skin. Rashes can have a wide variety of symptoms and appearances; they might be localised to one area of our body or they may be covering multiple areas.

Contact allergies, also known as allergic contact dermatitis, are a reaction to substances such as metals, scents and latex. This can cause skin reactions including skin rashes, swelling, itching, and dry skin.

Dandruff or an itchy scalp is the body’s reaction to a sensitivity to or overgrowth of a type of yeast, called Malassezia, that normally lives on the skin.

A drug allergy is an allergic reaction to medication that occurs when the immune system is incorrectly activated by a drug. Vaccine allergy is very rare. It is usually caused by allergy to an excipient in the vaccine, rather than the active ingredient.

The term ‘eczema’ can be used interchangeably with the term ‘dermatitis’. However both terms just describe a pattern of inflammation in the skin.

Excess shedding is often referred to as telogen effluvium and can be a result of general health issues and stress.

Hyperhidrosis is sweating when your body does not need to cool down. It usually affects body sites with the most sweat glands, such as the armpits, palms, soles and head and neck area.

The severity of insect venom allergy varies from person to person but can range from localised or mild, to life-threatening.

Urticaria (also called “nettle rash” or “hives”) is common and affects 20% of people at some point in their lives. The most common form is called spontaneous urticaria. Spontaneous urticaria is divided into “acute” and “chronic” forms dependent upon whether the episode lasts less than or greater than 6 weeks.

Exercise-induced anaphylaxis is an uncommon, potentially-serious condition in which anaphylaxis occurs during or after physical activity.