How is there two erythema to return a responsibility on neck

summary

Once upon a time, there was a red spot on the neck and I was scared. So hurry to consult the long erythema on the face is how to return a responsibility. Here to tell you what I know about the long erythema on the face.

How is there two erythema to return a responsibility on neck

First: urticaria. It is mainly caused by allergic reactions. It often occurs in children with allergic qualities. They often have urticaria after eating fish, shrimp, crab, eggs, beef and other allergic foods. Plant foods such as strawberries, cocoa, tomatoes and garlic can also become allergens. Food additives such as condiments, pigments and preservatives can also cause allergies.

Second: eczema. Generally caused by allergies, caused by many reasons, may be related to the diet environment, and their own constitution is also related.

Third: contact dermatitis. Contact dermatitis is an inflammatory reaction of skin and mucous membrane due to contact with external substances, such as chemical fiber, clothing, cosmetics, drugs and so on. Its clinical characteristics are sharp edge damage and erythema at the contact site.

matters needing attention

We should pay attention to the long erythema on the face is caused by allergies, so we should understand their allergens, and try to avoid, after allergy to the doctor in time for group, don't hide.