Eczema is still developing even after taking medication, which may be caused by continuous exposure to allergic substances, improper medication, insufficient course of treatment, and dietary intemperance. 1. Continuous contact with allergic substances: eczema is a kind of perverse reaction of skin allergy, which is often caused by contact with allergic substances, such as animal fur, pollen, ointment, ultraviolet rays, bacteria and viruses and other pathogens, etc., and should be avoided to avoid contact with allergic substances, and get rid of the sensitive environment. 2. Improper medication: If you get eczema blindly use your own medication, there is no obvious effect on eczema, but also damage to the body, the general use of loratadine, benadryl, vitamin C and other drugs, the drug needs a certain course of treatment in order to play a significant anti-allergic effect, so you need to comply with the doctor’s instructions in accordance with the course of treatment of medication. 3. Dietary indiscretion: If after the occurrence of eczema still eat spicy stimulating food, or unspecified allergic food, can cause itching feeling obvious, aggravate the symptoms of eczema, so to light diet. It is recommended that patients standardize the use of medication under the guidance of dermatologists, do not blindly use their own medication, and do not scratch the skin.