Skin allergy The allergic problem is one of the most common skin problems in men and women, causing them a lot of anxiety and inconvenience because of the desire to itch and scratching, which is the result of chemical changes accompanying the emergence of blisters and blisters, and it is considered as a side effect accompanying the infection of a skin disease or another disease in the body, and we will know Through this article, more details about the disease and how to treat it. Causes of allergy and itching The causes of itchy skin allergy are varied, and the most important of these reasons are: infection with some skin diseases, and among the most prominent skin diseases that provoke skin sensitivity and cause itching: Eczema. Psoriasis. Urticaria. Take medications for rashes. the war. Head bugs. Fungal infection. Dry skin that accompanies aging. Other diseases such as: pregnancy associated with obstruction of the bile duct. Hepatitis C virus. Thyroid disorder. Diabetes. Kidney failure. Pregnancy pills. Blood diseases. anemia. Leukemia. Lymphomas. External causes: increased sweat secretions. Direct exposure to sunlight. Allergies resulting from eating certain foods. Take medications. Insect bites. Skin sensitivity due to cold.