1, to relieve allergic symptoms, first of all, wash cosmetics thoroughly with warm water, avoid scratching and touching with hands, wash allergic parts of skin with soap, calamine lotion or oxidized oil, and apply ointment externally for chronic skin inflammation, but try to avoid products containing hormones.

2. Protect and condition the skin. People who are allergic to cosmetics should protect their skin after going out and try to avoid contact with irritating substances and strong sunlight. The daily diet should be light, mainly supplemented with vitamins, protein and other nutrients. Paying attention to a healthy and balanced diet is conducive to the self-repair of skin resistance.

3. Don't rub the allergic parts. When the face or eyes are allergic, it is usually accompanied by itching, swelling, itching and other symptoms. Don't rub the allergic parts with your hands at this time, your hands often carry bacteria. Friction will not only bring bacteria into the skin, but also aggravate redness and swelling, which will aggravate allergies. At this time, you can use fresh aloe juice or mineral water spray to relieve itching.

Extended data

Skin reaction test

You'd better do a simple skin allergy test before buying cosmetics! The skin allergy test method of cosmetics is very simple. First, soak a piece of gauze in distilled water or normal saline, twist it until it is half dry, and fold it into four layers, the size is about 1 cm2. Apply cosmetics to one side of the gauze, then apply it to the normal skin of the forearm extension or back, then cover it with 1.5 cm2 airtight cellophane or plastic film and fix it with adhesive tape.

After 24 ~ 48 hours of observation, if the test site has itching or burning sensation, it means that the cosmetic is irritating to the skin and is a positive reaction. The test substance should be taken out in time and rinsed with clear water. If there are no symptoms at the test site, it is a negative reaction, indicating that the cosmetic is non-irritating to the skin and relatively safe.

If there is simple erythema and itching, it is weakly positive; Red swelling and papules are moderately positive; If there are obvious redness, papules and blisters, it is strongly positive; It is extremely positive to have obvious blisters or even necrosis. If there is a positive reaction, it should be cleaned in time. It is recommended not to use this cosmetic.

Reference link? Baidu encyclopedia-cosmetic allergy