There are the following possibilities for red cheeks with small bumps: the first one may be peri-herpetic keratosis, which is mainly caused by genetic factors and can be treated with fruit acid application, which is applied to the affected area to open the mouth of the blocked hair follicles for the purpose of relieving or curing the disease. You can also apply retinoic acid ointment or tazarotene ointment once a day at night for treatment. The second case of eczema is more likely, mainly caused by allergies, in clinical treatment requires the use of topical zinc oxide borate ointment or tacrolimus ointment, and also oral levocetirizine hydrochloride capsule, one capsule every night, combined with compound glycopyrrolate capsule three times a day, two capsules at a time to carry out treatment. During the treatment period, you need to avoid light and spicy and irritating food.