Tretinoin acetate is a glucocorticoid used for the treatment of various skin diseases, joint pain, allergic rhinitis, frozen shoulder, bronchial asthma, as well as synovitis, tenosynovitis, acute sprains, rheumatoid arthritis and other diseases. This drug must be used under the guidance of a physician, and only small doses may be effective, while large amounts may induce infection, which is not beneficial to treatment. It should be used with caution in patients with heart disease or acute heart failure, diabetes mellitus, emotional instability, a tendency to mental illness, as well as in patients with glaucoma, hepatic impairment, hyperlipoproteinemia, hypertension, hypothyroidism, myasthenia gravis, and also in patients with gastric ulcer disease, renal impairment, and tuberculosis.