How to boil apple and pear water to stop cough and reduce phlegm

Chinese medicine believes that apples with pears have a certain effect of cough and phlegm, but the effect is limited after boiling water to make.
Chinese medicine believes that the pear taste sweet, slightly acidic, cool, to the lungs, stomach meridian; have clear lungs, phlegm, and thirst and other effects. And apple flavor sweet, sour, cool, to the spleen, stomach, large intestine meridian; beneficial to the stomach, the production of fluids, in addition to the annoyance, sober and other effects. The two are suitable for lung heat and dry cough, fever and thirst.
However, it is mainly eaten raw or made into fruit preserves, and boiling water to make the effective substance content is limited, it is difficult to achieve the purpose of treatment of disease. Note that people with cold spleen and stomach should not eat more.
All of the above are dietary therapy can not replace the drug, if the symptoms are serious need to consult a doctor in a timely manner, under the guidance of a professional physician to use medication, do not blindly take medication on their own.