When coughing, rubbing the Tian Tu acupoint can help clear lung qi and expel phlegm. If there is no phlegm and just a tickle in the throat, you can rub your hands together to warm them up and gently rub them against the soft tissue between the Tian Tu acupoint and the knot in the throat. If there is phlegm, the stimulation of the Tian Tu acupoints downward can be slightly heavier, which can effectively stimulate the effect of phlegm discharge. If the phlegm is not good out, the airway is too itchy, and even some people will feel pain in the chest, you can put the fingers four fingers together, from the tianchu acupoints down vigorously stroked through the skin until the sandalwood point, repeatedly stroked down, you can be on the local massage, can be particularly great relief of the airway itch, pain reaction.