Botox is short for botulinum toxin, and facial stiffness can be restored after botulinum toxin injection. At present, the main type of botulinum toxin developed and applied in the clinic is A-type botulinum toxin, and the effect is generally maintained for 3~6 months. The principle of action is to paralyze the muscles of facial expression, to achieve the purpose of removing wrinkles and beauty. Therefore, after injection of botulinum toxin, facial expression is not natural, feeling stiff, which is a normal reaction. With the prolongation of time, the effect of botulinum toxin gradually disappears, this facial stiffness will also disappear gradually with the disappearance of the drug effect, facial feeling will slowly return to normal. If you want to speed up the recovery, there are two ways, method 1: hot compresses or use vitamin C and other drugs to promote metabolism under the guidance of the doctor. Method 2: Strengthen the local muscle movement, which has a certain effect on relieving stiffness. If the facial sensation does not recover after more than 6 months, you should go to the hospital for examination and repair treatment according to the cause.