Allergic contact dermatitis occurs when your skin comes in contact with an allergen that your skin is sensitive or allergic to. The reaction usually appears within 48 hours after the initial exposure to the allergen. Symptoms that are commonly seen include the following: redness, swelling, blistering, itching, and weeping. The allergen can be a substance in a product that you have used for many years; it does not have to be a new product. Allergic contact dermatitis occurs more commonly in adults. The most common types of allergic contact dermatitis are allergy to poison ivy and poison oak..
CAUSE
- Whether or not you are allergic to something is determined by your genes.
- Many people believe that you cannot be allergic to a product that you have used everyday for many years. This is not true. At any time your skin can become allergic to one of the specific substances in the product, even though you have used it for a long time.
- Often, a rash may break out on your face even though an allergen did not directly come in contact with your face. If you get something on your hands that you are allergic to and then touch your face, the allergen can cause a reaction on the face even though there is no reaction on your hands. This is because the skin on our hands is thicker than that of the face, especially around the eyelids.
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