The red marks left by allergies on the face do not need to be purposely eliminated because they are just pigmentation caused by the inflammatory reaction on the face. Over time, the so-called red marks will gradually fade away. Some people may not fade completely because of individual differences, so you can use certain creams to improve the pigmentation to a certain extent. For example, you can apply mucopolysaccharide polysulfate cream, sodium heparin allantoin gel, etc. You can also apply topical cumene cream ointment, all of which can improve local blood circulation and can promote the absorption of local hyperpigmentation. Of course, if the patient’s red marks still do not fade can also be used physical treatment options, such as hydraluminescence treatment or laser treatment.