Children’s underarm temperature of 35.6 degrees belongs to the situation of low body temperature, may be caused by the external temperature is too low, excessive exercise, the use of drugs and other situations, can be dealt with through warmth, replenishment of body fluids, and timely discontinuation of medication, etc., such as not relieving the situation, timely access to medical treatment, to exclude infections, hypothyroidism and other disease factors. 1. Keeping warm: If the child is active for a long time in a low temperature environment, it may lead to hypothermia, in this case, it is necessary to get out of the cold environment in a timely manner, and give measures to keep warm. 2. Replenish body fluids: If the child sweats a lot due to high temperature or excessive exercise, and does not replenish water and heat in time. At this time there will be evaporation to take away too much heat and lead to body temperature deviation, which makes the child’s armpit temperature of 35.6 degrees. In this case, we should give the child timely replenishment of lukewarm water, can also be given appropriate sugar water to replenish energy. 3. Stop medication in time: If you have recently taken antipyretic medication for fever, it may also lead to an axillary temperature of 35.6 degrees. At this time to stop the drug and hydration, usually can return to normal. In addition to the above reasons, infections, hypothyroidism and other pathologic factors may also lead to a child’s axillary body temperature of 35.6 degrees, it is recommended to consult a doctor in time to identify the cause of the disease and actively deal with and treat it, so as not to delay the condition.