Usually, gastric drugs can be used together with drugs for dermatitis, and there is no special drug interaction between the two. Gastric drugs are commonly used clinically to protect gastric mucosa, inhibit gastric acid secretion, anti-Helicobacter pylori, and promote gastrointestinal dynamics, including omeprazole, ranitidine, aluminum thiosulfate, bismuth potassium citrate, and domperidone. Clinical treatment of seed dermatitis oral drugs commonly used antihistamines (such as loratadine), glucocorticoids (such as dexamethasone), etc.. Contraindications for the former are allergy to its components, and the latter are pregnancy, active tuberculosis, uncontrolled chronic infections, and so on. Adverse effects of the former are weakness, headache, dry mouth, etc., and the latter are abnormalities of glucose and lipid metabolism, immunosuppression, and peptic ulcers. Generally speaking, there is no drug interaction between gastric drugs and drugs for the treatment of dermatitis, and there is no adverse effect on the organism when they are used together, but if uncomfortable symptoms occur with the same dose, it is still necessary to actively seek medical attention and adjust the medication under the guidance of the doctor.