Encountering cold air scalp brush a numbness, may be allergic to cold air, may also be the patient suffers from fever and cold, can also be seen in physiological factors.
1. Cold air allergy: Individuals may be allergic to cold air, suddenly encountered cold stimuli, there may be an allergic reaction, the performance of scalp numbness, at the same time there may be a whole body skin numbness and itching, etc., can be improved after appropriate warmth.
2. Cold, fever: patients suffering from cold and fever, due to the scalp and the whole body skin temperature is high, suddenly encountered cold air stimulation, may make the local vasoconstriction caused by local ischemia and hypoxia, so that the local nerve stimulation, scalp numbness or numbness of the whole body, you can use some antipyretic drugs, and when necessary, appropriate warmth.
3. Physiological factors: some normal people, suddenly stimulated by cold air, may also cause local vasoconstriction and symptoms.
The above symptoms and has not been able to relieve, it is recommended to consult a doctor in time, to clarify the cause under the guidance of the doctor for treatment.