The phenomenon of fever and fear of cold is due to the shift of the body temperature regulating point upward, resulting in the body’s heat dissipation is reduced, and heat production is increased. When heat dissipation decreases, the capillaries on the surface of the skin will contract, and then you will feel colder, which is caused by vascular contraction, but you can’t cover more blankets, because covering the blankets at the same time is very unfavorable for heat dissipation, which will accelerate the rise of body temperature, and the phenomenon of chills will be more serious. If you feel cold, it is recommended that you use fever-reducing methods of treatment, which will relieve the symptoms of fever and chills. If the body temperature is relatively high, above 38.5 ℃ can be treated with oral antipyretics, such as ibuprofen suspension or acetaminophen suspension. In adults, indomethacin suppositories can be inserted into the anus to reduce fever. If the fever is not particularly high, below 38.5 ℃, you can take cold and fever granules or antelope horn granules to reduce fever, the effect is also better.