Knee arthritis may initially feel warmth in the knee, and patients need prompt treatment. There are abundant nerve endings in the subchondral bone of the joint, when inflammation occurs in the knee joint, the inflammation stimulates the articular cartilage, which may produce local abnormalities such as warmth, swelling, too cold, sinking and pain at the initial stage; with the aggravation of the condition, the patient’s joint activities are restricted, deformities and even muscle atrophy and other abnormal phenomena. Initial fever symptoms of knee arthritis are easy to appear after a long time of walking or exercise, at this time you can rest more, local hot and cold compresses to improve the symptoms. If the pain is accompanied by pain, you can use topical creams such as flurbiprofen gel paste to relieve the symptoms, or take oral ibuprofen and other non-steroidal anti-inflammatory drugs to treat the symptoms. The use of medication should be directed by a doctor. It is recommended that patients in the early stages of knee osteoarthritis go to the rheumatology and immunology departments of regular hospitals for detailed consultation and standardized diagnosis and treatment in accordance with the doctor’s instructions. The medication should be used in accordance with the doctor’s instructions, do not self-medication.