Rosacea autosensitive dermatitis

Rose-type autosensitive dermatitis is still quite common nowadays, and many people have this problem. If this is the case, it will cause your skin to become quite susceptible to allergies. No matter what substance it comes into contact with, it may cause allergies. Therefore, you must find the cause of the allergy at the beginning. Only in this way can you adopt more targeted treatment methods. You must also take good care of your skin in your life.

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The cause of contact dermatitis is closely related to the contact object. The primary treatment measure is to find out the cause of the allergy, avoid contact with the substance again, and treat the symptoms that have appeared.

1. Find the cause of allergies

Take a detailed medical history and carefully inquire about the environment related to the onset of the disease, the type, quantity, physical and chemical properties of the substances contacted, the length of contact time, the method of contact, whether there have been similar rashes in the past, etc. Analyze which substances may be related from the medical history to provide a basis for skin patch testing. Once the cause of the allergy is found, try to avoid further exposure.

Irritants or toxic substances remaining on the skin should be rinsed off as quickly as possible. Clean water, saline or light soapy water can be used for rinsing. If the contact object is a strong acid, it can be rinsed with a weak alkaline liquid (such as soda water); if it is a strong alkaline substance, it can be rinsed with a weak acidic liquid (such as boric acid solution).

2. Avoid stimulation

If clinical symptoms occur, local irritation should be minimized. Avoid scratching, do not wash with hot water, and avoid strong sunlight or hot air stimulation.

3. Systemic treatment

Oral antihistamines, such as cyproheptadine, diphenhydramine, chlorpheniramine, acrivastine, cetirizine, mizolastine, ebastine, desloratadine, etc.; large doses of vitamin C taken orally or intravenously; 10% calcium gluconate injection, intravenous push. If the area is extensive and the erosion and exudation are severe, glucocorticoids can be given. Such as oral prednisone, triamcinolone or dexamethasone; intramuscular injection of Diprosone. For severe cases, hydrocortisone or dexamethasone can be given intravenously first, and then maintained orally after the symptoms are alleviated.

If contact dermatitis is accompanied by local infection, such as lymphangitis, lymphadenitis, and soft tissue inflammation, antibiotics can be used. For mild cases, erythromycin, penicillin V potassium, cephalexin, or sulfonamides can be taken orally; for severe cases, penicillin, cephalosporin, or quinolone antibiotics can be given intravenously.

4. Local treatment

Local treatment is very important and should be treated according to clinical manifestations.

(1) In the acute stage, if the symptoms are mainly erythema and papules, use lotion, cream or ointment. Such as calamine lotion, oscillating lotion, triamcinolone acetonide cream, clofosinate cream, and Fuqing cream, etc. You can also use ointments containing pine distillate oil, bran distillate oil, and zinc oxide for external application. If there is obvious redness and swelling, accompanied by blisters, erosion and exudation, open cold wet compresses can be applied. The wet compress solutions include 3% boric acid solution, 1:2 aluminum acetate solution, and 1:8000 potassium permanganate solution. If there is purulent secretion, apply wet compress with 0.02% furacilin solution or 0.5% ethacridine solution. Wet compresses should not be applied too long, usually for 2 to 3 days. After the exudation stops and the swelling subsides, the wet compresses can be stopped and creams or ointments can be used externally instead.