Seasonal allergies, dry and itchy skin can be caused by eczema, cold urticaria, atopic dermatitis, you can take medication for the cause of the disease and other ways of treatment. 1. Eczema: Eczema can lead to seasonal allergies, dry and itchy skin symptoms, you can apply glucocorticoid drugs under medical supervision, such as hydrocortisone butyrate cream, dexamethasone cream, etc., which can make the allergy symptoms reduced, relieve itching skin. 2. Cold urticaria: Seasonal allergies, dry and itchy skin may be the manifestation of cold urticaria, you can follow the doctor’s instructions to take second-generation antihistamines, such as ibastine, lupatadine, etc., can reduce the allergic reaction, thereby relieving the symptoms. 3. atopic dermatitis: atopic dermatitis will also appear skin seasonal allergies dry itchy phenomenon, you can follow the doctor’s instructions for external use of urea ointment and other moisturizers, while the application of dexamethasone cream and other glucocorticoid medications, there is a serious itching, you can take oral antihistamines under medical supervision, such as imipramine, ibrastine and so on. There are many reasons that lead to dry and itchy skin allergies during the season, so it is recommended that patients go to the hospital to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.