Diclofenac Sodium Aerosol is administered as a topical spray three times a day, with a total daily dosage not to exceed 12 grams. Diclofenac sodium aerosol is an anti-inflammatory and analgesic non-steroidal anti-inflammatory drug. It can be used to relieve sprains and strains of muscles and soft tissues as well as pain and joint pain caused by low back injuries. It is used as a topical spray by holding the bottle upright and spraying it on the affected area. Spray for no more than 2 seconds at a time (about 2 grams of spray), 3 times a day, and use a total of no more than 12 grams of medication a day. Adverse reactions may occur during use, the more common of which are allergies, local redness, itching, rashes, edema, blisters, etc. Prolonged use may lead to asthma attacks, angioneurotic edema, photosensitivity. If you are allergic to the drug, it is forbidden to use it. In the process of using the drug, pay attention to avoiding long-term use in large quantities, not to be used on broken skin, avoid contact with eyes and mouth and nose. Patients with hepatic or renal insufficiency, pregnant and lactating women should follow the doctor’s instruction when taking the drug. It is recommended that patients use the drug under the guidance of a doctor to avoid blind use of the drug, so as not to cause adverse consequences.