Adults with fever and chills for ten consecutive days should be treated for the causes and symptoms. Adults with fever and chills for ten consecutive days may be caused by colds, tuberculosis, rheumatoid arthritis and other diseases, and patients can improve their condition through general treatment, medication, surgery and other ways. 1. Cold and flu: patients should pay attention to rest and keep warm, drink more water as appropriate, avoid staying up all night and other behaviors, and can take fever-reducing drugs under the guidance of doctors, such as ibuprofen, acetaminophen and so on for treatment to alleviate the condition. 2. Tuberculosis: Tuberculosis patients should pay attention to bed rest, to be fed with nutritious and multi-vitamin food, can be used under the guidance of the doctor isoniazid, rifampicin, pyrazinamide and other drugs for treatment, fever temperature is higher patients can take antipyretic drugs, such as ibuprofen and other treatments. For patients who are ineffective in conservative treatment or have symptoms such as hemoptysis and thick-walled cavities, surgical treatment can be performed to improve the condition. 3. Rheumatoid arthritis: patients with rheumatoid arthritis should pay attention to rest, take warm measures, avoid excessive activity of the diseased joints, and use non-steroidal anti-inflammatory drugs, such as celecoxib, etc., under the guidance of a doctor for treatment. In severe cases, surgery can be performed to improve joint function. It is recommended that patients strictly follow the doctor’s instructions to use medication, do not change the dose of medication without authorization or abuse medication privately, and do a good job of monitoring the condition in life, and consult a doctor if there is any abnormality in time.