An almond allergy is considered a tree-nut allergy, which is a common food-related allergen. Unlike other food allergies, an almond allergy is typically lifelong. Only about 9 percent of people with an almond allergy outgrow it, according to the Food Allergy Initiative. A common symptom of an almond allergy is a rash that can develop as hives, eczema or general itching. Talk with your doctor if you develop a rash after eating almonds, as this may be a sign of anaphylactic shock.
Cause
An almond allergy is a hypersensitivity to the proteins found in almonds. The body mistakes the proteins as a dangerous substance, such as a virus or infection, and begins to protect itself by creating antibodies. As the antibodies enter the blood, mast cells produce a chemical called histamine that helps to protect the body. Histamine causes inflammation and irritation wherever it is released. When it is released by the surface of the skin, the skin will develop a rash.
Types
The most common rashes that develop from an almond allergy are hives, eczema and general itching, according to Kids Health. Hives are welts that form in clusters anywhere on the body. Hives typically appear within a few minutes after you have eaten almonds, but could take up to one hour before they develop. Eczema is an allergic skin condition that forms small blisters that can weep and crust over. Eczema also causes patches of skin to become leathery and extremely dry. General itching can form with inflamed skin.
Treatment
You can treat the different types of rashes that can develop from an almond allergy the same way. Take an oral antihistamine to reduce the amount of histamine by the surface of skin. Use steroid-based creams or lotions, such as hydrocortisone or corticosteroid, to reduce inflammation and itching. If you know you have a severe allergic reaction to almonds, hives may be the first sign of anaphylactic shock. If you have epinephrine available, use it and call 911.
Prevention
Avoid consuming almonds or products containing almonds to prevent an allergic skin rash. The FDA requires that all food manufacturers state clearly on the label if any tree nuts are used in their products, according to the Food Allergy Initiative.
Warning
Common symptoms of a severe allergic reaction to almonds include hives, shortness of breath, the inability to breathe, lightheadedness, anxiety and a drop in blood pressure.
