Patients with rheumatic fever can relieve some joint pain by soaking their feet, but this does not fundamentally solve the problem. Rheumatic fever is often caused by streptococcal infection, which leads to diseases such as arthritis. Therefore, antibiotics should be used at the source to eliminate streptococcal infection and hence prevent the recurrence of rheumatism. Additionally, we can use anti-inflammatory and analgesic drugs to control joint pain. Commonly used anti-inflammatory analgesics include non-steroidal pain relievers, such as diclofenac sodium sustained-release tablets. If there is inflammation in the heart due to rheumatic fever, corticosteroid treatment should be considered. (Medication should be used under the guidance of a doctor.)