Rosacea in medicine refers to rosacea, generally there are erythematous capillary dilatation type, papular pustular type, hypertrophic type, etc. Minocycline has better efficacy on papular pustular type rosacea, and the general treatment course is 8-12 weeks, but due to individual differences, the time of the emergence of the effect can not be generalized. Minocycline is indicated for superficial suppurative infections such as acne and folliculitis and deep suppurative diseases such as mastitis and osteomyelitis, as well as sepsis, bronchodilatation, cystitis and enteritis. Minocycline is usually prescribed for 8-12 weeks for patients with rosacea, and some people may see significant results in about 2 weeks of treatment, while others may need to change to another medication after 8 weeks of treatment if the results are still unsatisfactory. Adverse reactions such as abdominal pain, dizziness, anorexia, shock and allergy may occur after taking minocycline, and should be used with caution by those engaged in hazardous and overhead work, the elderly, and those with hepatic and renal insufficiency. This product is contraindicated for those who are allergic to tetracyclines. If rosacea patients need to take minocycline, it is recommended to go to a regular hospital to consult a doctor, under the guidance of the doctor to use the drug, is strictly prohibited unauthorized use of drugs.