Dense packets appeared on his face. What should he do if his whole face was red?

There are dense small packets on the face. The whole face is red, which may be caused by skin allergy caused by cosmetics. It is suggested not to make up in the near future. Pay attention to light diet. Keep indoor air circulating. Apply normal saline to the face, apply ointment containing hormones to the face, and take loratadine orally for anti-allergy.