Hydroxychloroquine is not a hormonal drug, hydroxychloroquine belongs to the 4-aminoquinoline class of drugs, an antimalarial drug. Clinically, the commonly used dosage form is hydroxychloroquine sulfate tablets, which has anti-inflammatory and immunomodulatory effects. Hydroxychloroquine should be used in strict accordance with the doctor’s instructions, not blindly. Hydroxychloroquine is mainly used in the treatment of juvenile chronic arthritis, rheumatoid arthritis, dry syndrome, discoid lupus erythematosus, systemic lupus erythematosus and other diseases, as well as skin lesions triggered or exacerbated by sunlight, and can also be used to prevent post-surgical thromboembolism. Gastrointestinal adverse reactions such as anorexia, nausea, vomiting, abdominal pain, and diarrhea may occur in some populations with the use of this medication, as well as skin allergic reactions such as rash and itching, as well as neurological symptoms such as headache and drowsiness caused by the drug. After large doses of hydroxychloroquine, it can even cause visual impairment, liver and kidney damage. First of all, those who are allergic to hydroxychloroquine, as well as those who are allergic to 4-aminoquinoline compounds should be prohibited from using it. In addition pregnant or breastfeeding women, patients with diseases of the liver, kidney or blood system, as well as psoriasis, should be used with caution.