The hot tingling of the plaster may be a normal reaction, or it may be related to allergies. If the active ingredient in the ointment causes the body to appear hot and tingling, is a normal phenomenon, more can be relieved by themselves, but if the pain is followed by pimples, blisters, etc., it is very likely to be caused by allergies. Ointment belongs to the external medicine, is directly applied to the body surface, to achieve the regulation of qi and blood, through the meridians and channels, dispersal of cold and dampness, swelling and pain, etc., easy to use, suitable for chronic back pain, bruises and so on. If there is a hot stinging pain after the use of ointment may be a normal reaction, may be some of the active ingredients in the ointment due to the use of the skin after the skin has an obvious burning sensation, can be relieved on their own. However, if pimples, blisters and itching appear after the pain, it may be caused by allergy, remove the ointment in time and wash the affected area with water. There are more kinds of plasters, specific to use under the guidance of the doctor, if there are uncomfortable symptoms, and when the symptoms worsen, we should consult the doctor in time to avoid delaying the treatment.