Suddenly long pimples on the face of yellow water may be contact dermatitis, as well as eczema, herpes zoster and other diseases, it is recommended to take general treatment, medication and other ways to improve. 1. Contact dermatitis: contact dermatitis may also cause sudden growth of yellow water on the face, patients should improve personal hygiene habits, need to follow the doctor’s instructions to apply dianabed, trimethoprim and other glucocorticosteroid drugs to reduce inflammation and improve the symptoms. 2. Eczema: Eczema may lead to sudden growth of pimples and yellow water on the face, patients should try to identify the causative factors and keep away from them, and glucocorticosteroids such as hydrocortisone and halomethasone can be applied according to doctor’s instructions, which can reduce inflammation and anti-allergy. 3. Herpes zoster: the face suddenly long pimples flowing yellow water consider and herpes zoster related, the patient should not rub, squeeze the affected area, should follow the doctor’s instructions oral antiviral drugs, including vaxilovir, etc., to promote recovery. At the same time should be given pain relief, nutritional nerve drugs, if necessary, give high-energy red light local physical therapy. There are many reasons for the sudden growth of pimples and yellow water on the face, so it is recommended that patients go to regular hospitals and cooperate with doctors to carry out standardized treatment.