Tacrolimus Ointment is an immunomodulator and is primarily used to treat moderate to severe atopic dermatitis for which conventional therapies are contraindicated due to the potential risk of non-immune compromise, or for which there has been an inadequate response to, or inability to tolerate, conventional therapies. Side effects of tacrolimus ointment include burning skin sensation, itching, flu-like symptoms, headache, rash, acne, indigestion, and other symptoms. In addition, tacrolimus ointment is contraindicated in patients who are allergic to its ingredients; avoid use in potentially worsening or malignant skin diseases; pregnant and lactating women should use it with caution on balance; and tacrolimus ointment at a concentration of 0.1% is not indicated for pediatric patients. If you need to use tacrolimus ointment, it is recommended to consult a professional doctor and follow the doctor’s instructions for standardized treatment, not blindly self-medication.