DC drug ion introduction method refers to the use of direct current to introduce drug ions into the body through the skin, mucous membranes or wounds for treatment. The principle of direct current ion introduction method is based on the principle that same-sex charges repel each other and opposite-sex charges attract each other in a direct current field, and drug ions are introduced into the body through intact skin or mucous membranes, and ions of different charges can be introduced into the body, with cations being introduced from the anode and anions from the cathode. DC drug ion introduction therapy, can have a therapeutic effect of drug components into the body, a large number of solvents and substrates without therapeutic value does not enter the body, and the drug can be directly into the relatively shallow lesions. Although the amount of drug is relatively small and the concentration is low as far as the whole body is concerned, the concentration is higher than other methods of drug administration for the anterior marker tissue. It is recommended that patients suffering from the disease should go to a regular hospital for relevant examination and use the correct way of treatment according to the doctor’s guidance.