Different allergic manifestations can affect the skin. The most frequent ones are atopic dermatitis or atopic eczema, urticaria, angioedema and contact allergy, which may refer to contact dermatitis or contact urticaria. These conditions differ in causing agents, symptoms and treatment.

There are several types of skin allergy. The most common ones are:

• Atopic Dermatitis
• Urticaria
• Contact Allergy
• Angiodema