The tips of the needles should be sharp, smooth and free from any hooks. On tapping, the tips of the needles should strike the skin at a right angle to the surface to reduce pain.
针具及叩刺部位皮肤必须消毒，以防感染。
Sterilize the needles, and the location of treatment should be disinfected. After heavy tapping, the local skin surface should be cleaned and disinfected to prevent infection.
局部皮肤有外伤及溃疡者，不宜使用。
Tapping is not allowed to apply to the location of trauma and ulcers.
针尖必须平齐无钩，叩刺时针尖须垂直而下，以减少疼痛。