Warm baby is not directly affixed to the skin, must be strictly in accordance with the instructions for the use of warm baby, will be affixed to the clothes, pay attention to avoid burns. Warm baby although the heat source temperature is low, but if directly affixed to the skin, in the human body local role for a long time may cause burns. Some studies have shown that the temperature of the heat source is more than 44 ℃, long-term contact may lead to low-temperature burns. When the joints or muscles appear localized pain, or when the weather is cold, you can use the warm baby to relieve pain or warmth. Women with menstrual cramps can also paste warm baby to accelerate local blood circulation, promote the flow of menstrual blood, thereby relieving menstrual cramps, but should not be used directly on the skin, should be at least one layer of clothing spaced from the skin, and should not be used at night to sleep. It is recommended to use baby warmers in a scientific and standardized way, even if the temperature of the baby warmer is no longer high, do not stick it on the skin to avoid allergic reactions and low temperature burns. If any discomfort occurs during use, stop using it in time, consult a doctor if necessary, and follow the doctor’s instructions.