Itchy skin red spots after bathing may be cold urticaria, mosquito bites caused by the patient should consult a doctor in a timely manner to clarify the cause of the appropriate treatment. 1. Cold urticaria: at the end of the bath, may be cold stimulation caused by skin itching, red spots, the patient will have itchy parts of the wind, angioedema, should eliminate the cause of the disease, to avoid exposure to the cold, if necessary, the use of glycerine lotion, oral cetirizine, loratadine, etc. for treatment. 2. Mosquito bites: If the patient has been to the woods, grass and other mosquitoes after bathing, it should be considered mosquito bites caused by itching red spots on the skin after bathing, most of the patients can be self-cured in a few days, if necessary, you can use topical glycerine lotion, Dinhydrin cream, etc. to carry on the treatment. All of the above drugs should be used under the guidance of a doctor.