Ultraviolet dermatitis manifests as erythema, papules, pimples, vesicles, oozing, as well as crusting and blood crusting, accompanied by itching or painful sensations. In terms of treatment, anti-allergy therapy is carried out, and oral loratadine citrate capsules or epinastine hydrochloride capsules can be taken. In severe cases where the rash is more densely distributed and fused into patches, compound glycyrrhizin injection, or compound monoammonium glycyrrhizinate S sodium chloride injection can be given by sedation, which usually needs to be given for more than seven consecutive days. Topical medications should also be used, with glucocorticoid ointments preferred, including hydrocortisone butyrate ointment or mometasone furoate ointment. If the rash is hypertrophic, a strong glucocorticoid ointment such as halometasone ointment, or fluticasone propionate ointment can also be applied.