Adults with recurrent fever should pay attention to the need for timely consultation to clarify the cause of the disease, and to carry out cause-specific treatment and cooling treatment, in order to make the body temperature drop quickly. The specific treatment is as follows: 1. Define the cause and treatment of the cause: if it is a viral infection, you can apply antiviral drugs; if it is a bacterial infection, you can apply antibacterial and anti-inflammatory drugs; if it is other causes, you can follow the medical advice and apply the corresponding drugs to treat the cause; 2. Cooling treatment: if the body temperature exceeds 39℃, choose local cold therapy, using cold towels, ice bags and other cold compresses; if the body temperature exceeds 39.5℃, choose whole body cold therapy, using warm water swabbing, ethanol swabbing to achieve the purpose of cooling. Warm water swabbing, ethanol swabbing to achieve the purpose of cooling, while paracetamol tablets, ibuprofen extended-release capsules, aspirin and other antipyretic drugs can be applied. In addition, the observation of the condition should be strengthened, such as measuring the body temperature four times a day and every four hours in case of high fever; if the cause of fever is cold, unclean diet, etc., attention should be paid to the elimination of the causes and triggers of fever; observe the effect of drug treatment, compare the systemic symptoms and laboratory test results before and after treatment. At the same time, pay attention to nutrition and hydration, such as giving high-calorie, high-protein, high-vitamin, easy-to-digest liquid or semi-liquid diet and drinking more water, which can promote the excretion of toxins and metabolites and facilitate the reduction of fever.