Herpes zoster scabs and then grows a lot of red rash can be treated by non-drug, drug and other methods, but due to the cause of herpes zoster scabs and then grows a lot of red rash of more causes, such as recurrence of the disease, pimple urticaria, contact dermatitis and so on, the specific treatment needs to be based on the condition of the choice. 1. Relapse: you can choose to use glycerine lotion, acyclovir tablets, diclofenac sodium extended-release tablets and other drugs under the guidance of a professional doctor for treatment, you can also choose to carry out infrared rays, spectrum therapeutic instrument and other physical methods for treatment. 2. papular urticaria: should promptly change the living environment, do a good job of de-worming. You can choose to use topical glycerine lotion, mometasone furoate, etc., oral loratadine tablets, cetirizine hydrochloride tablets, etc. under the guidance of professional doctors. 3. Contact dermatitis: avoid contact with suspected allergens and eating irritating foods. You can choose to use antihistamines such as benadryl tablets and calcium-modulated phosphatase inhibitors such as tacrolimus cream under the guidance of a professional doctor. When uncomfortable symptoms appear, you should go to the hospital for examination and diagnosis in a timely manner, to clarify the cause of the disease, and carry out targeted treatment under the guidance of a professional doctor, so as to avoid any impact on your health. The drugs mentioned above need to be used in accordance with medical advice.