2. No scratching. After allergy, there will be many little red spots on the skin. In severe cases, there will be pieces of erythema, accompanied by itching, especially when resting at night, you will unconsciously scratch the affected area.
3. Cool down and replenish water. When allergic, the body will have hot flashes. You can use cold compress to cool down. You may wish to apply a towel to the allergic skin with water.
4. See a doctor. If the allergic symptoms are still not relieved after the above measures are taken, it is best to go to a nearby hospital for treatment.
5. Don't eat food that causes allergies. After finding out what you are allergic to, don't eat this kind of thing again in the future, because it may cause another allergy.