Contact dermatitis symptoms?

summary

Contact dermatitis is an inflammatory reaction that occurs at the contact site or even outside the contact site after single or multiple contact with exogenous substances. The manifestations were erythema, swelling, papules, blisters and even bullae. There are many substances that can cause contact dermatitis, including animal, plant and chemical. Contact dermatitis symptoms? Let's talk about it

Contact dermatitis symptoms?

Dermatitis generally has no specificity. Due to different contact materials, contact methods and individual reactions, the form, scope and severity of dermatitis are also different. Mild local erythema, light red to bright red, slightly edema, or needle tip papules dense, severe erythema swelling is obvious, on this basis, there are many papules, blisters, severe inflammation can occur bullae. When the blister ruptured, there were erosion, exudation and scab.

If it is a strong primary stimulation, it can make the epidermis necrotic and fall off, and even ulcerate the deep dermis. When dermatitis occurs in tissue loose parts, such as eyelids, lips, prepuce, scrotum and so on, the swelling is obvious, showing localized edema without clear edge, the skin is bright, and the surface texture disappears.

The location and range of dermatitis is consistent with that of the contact, and the boundary is very clear. However, if the contact is gas or dust, the dermatitis is diffuse and has no clear boundary, but mostly occurs in the exposed parts of the body. Most of the conscious symptoms are itching, burning or distending pain. A few severe cases may have systemic reactions, such as fever, chills, headache and nausea.

matters needing attention

Oral antihistamines such as cyproheptadine, diphenhydramine, chlorphenamine, Avastin, cetirizine, mizolastine, ebastine, desloratadine, etc; High dose vitamin C orally or intravenously; 10% calcium gluconate injection, intravenous injection. Glucocorticoid can be given to patients with extensive area, serious erosion and exudation. Such as oral prednisone, triamcinolone or dexamethasone; Diprospan was injected intramuscularly. In severe cases, hydrocortisone or dexamethasone can be given intravenously first, and oral administration can be maintained after symptoms are relieved.