Allergic skin reaction
Allergic skin reactions form two groups of diseases. One-time and systemic. How to distinguish and treat them we will tell in this article.
A single allergic skin reaction can occur in a photoallergic reaction. The combination of some preparation (most often medications) and the sun causes the skin to become red, swollen, itchy, sometimes blistered. Similarly, phytophotodermatitis is also caused by plant juices (e.g. hogweed, parsnip, celery, lemon, fig) in combination with the sun.
Both photodermatitis are treated with cooling of the affected area and ointments with low corticosteroid content. Phytophotodermatitis can be prevented by using a protective barrier cream or gloves.
Often the skin reacts hypersensitively to certain substances, of which there are currently over 3,000 known. This hypersensitivity takes five main forms and is called contact eczema.
A systemic allergic skin reaction occurs when an individual has an innate, genetic disposition to it. These are mainly atopic eczema and contact allergic eczema, urticaria and angioedema.
Hives can occur as a reaction to cold or heat, as a reaction of the body to certain foods, drinks, medicines, but also during stress or illness. The skin turns red, itches, small pimples appear, which merge into larger spots, often accompanied by swelling. In more severe forms, urticaria may be accompanied by shortness of breath, swelling of the tongue, throat. Mild forms are treated with over-the-counter antihistamines; for more severe or chronic conditions, a doctor prescribes medication.
Angioedema is a swelling of the skin as a result of an allergic reaction. It is provoked, as in urticaria, by certain foods, beverages, medications, and can occur after insect bites. Angioedema often occurs together with urticaria. Treatment is the same as for urticaria. In more severe conditions, hydrocortisone is injected.
