Acetaminophen, ibuprofen and diclofenac potassium can be applied for leg pain and knee pain with faster results. 1. Acetaminophen: This product is suitable for relieving mild to moderate pain such as arthralgia and muscle pain. Adverse reactions such as skin rash, liver and kidney impairment may occur after use. It is contraindicated in severe liver and kidney insufficiency and allergy. This product should not be used for long term. 2. Ibuprofen: It can relieve acute mild and moderate pain, especially all kinds of joint swelling and pain. Adverse reactions such as nausea, vomiting, chest tightness and cough may occur during administration. It should be used with caution in patients with basic gastrointestinal diseases, liver and renal insufficiency, and should not be taken for a long period of time when it is used for pain relief. 3. Diclofenac potassium: This product is suitable for the short-term treatment of acute pain. Adverse reactions such as nausea and vomiting, dizziness and rash may occur after administration. Allergy and perioperative period of coronary artery bypass graft surgery are prohibited. All of the above drugs should be applied under the supervision of a physician, and should not be used without authorization.