Do you have red and itchy patches on your face?

Everyone knows that a person's face is very important. The face is equivalent to a person's facade. If there is a problem with the facade, it will not only affect the health of the face, but also affect people's image. Some people have red patches on their faces in their lives, and they are very itchy. In most cases, this is discomfort caused by dermatitis. It is best not to scratch with your hands. The more you scratch, the more itchy it will be. Scratching too much may lead to bacterial infection and aggravate the condition.

What is facial allergic dermatitis?

Facial skin allergies are also known as "sensitive" skin. From a medical point of view, skin allergy mainly refers to when the skin is exposed to various stimuli such as adverse reactions to cosmetics, chemicals, pollen, certain foods, polluted air, etc., causing abnormal phenomena such as redness, itching, peeling and allergic dermatitis. Sensitive skin can be said to be unstable skin, a skin that is always on high alert. Pay special attention to its care.

The causes of skin allergies include internal factors and external factors:

The internal factor is the allergic constitution, which plays a leading role in the onset of skin allergies. Early and thorough desensitization is the key to treating skin allergies and preventing recurrence.

There are many external factors as well. Including diet, inhaled substances, climate, contact with allergens and other factors. Among them, seafood, protein, spicy food, alcohol, inhalation of pollen, dust mites, cold weather, contact with chemicals, soaps, detergents, etc. are the most common causes of skin allergies. Due to such complex reasons, skin allergies recur repeatedly due to the interweaving of numerous causes and inducing factors.

Facial allergic dermatitis is a skin inflammatory reaction caused by many factors and occurs on the face. Facial allergic dermatitis is a skin inflammatory reaction caused by many factors. There are many common triggers, and the allergic reactions caused by different pathogenic factors are named differently. Cosmetic dermatitis Facial dermatitis caused by cosmetics is called cosmetic dermatitis. Cosmetics have become an indispensable part of people's daily lives. Some people frequently use certain cosmetics and will have an allergic reaction once they stop using them or use them again; some people have an allergic reaction on their face after using them for the first time; others have a reaction after being exposed to sunlight after use. Most dermatitis patients experience allergic reactions within hours after using cosmetics, which is medically called an immediate (or rapid) allergic reaction; an allergic reaction that occurs after several days is called a delayed reaction. Generally, immediate reactions are more common. In mild cases of facial allergic dermatitis, there is only local itching of the skin, with a few scattered symptoms. Small red papules, erythema and mild swelling. In severe cases, there is local skin edema, diffuse erythema, water scars of varying sizes, and even exudative erosion.