After shaving the bald head 1-2 days you can feel a significant growth of hair, the normal rate of hair growth is 0.3mm per day, after 1-2 days the surface of the scalp can see the new growth of dense short hair, you can also choose to use physiological methods or pharmacological methods to promote hair growth. Physiological method means massaging the scalp more often, by promoting blood circulation in the head, can make the hair follicles grow hair slightly faster, the speed is not very significant. The pharmacological method is to choose to apply Minoxidil application or with oral blood nourishing hair growth capsule, which can make the hair growth speed up rapidly. This method is recommended not to be applied for a long time, otherwise it will stimulate the scalp, easily triggering contact dermatitis, resulting in itching, redness and swelling of the scalp area, which is not conducive to scalp health.