Kidney-yang deficiency, medlar+dodder each 30g generation of tea can be, eating Liuwei Dihuang Pill is also good, and there is nothing to clear the lungs.

You can consider wearing a mask or nose protection. After all, dust is harmful to the lungs, and it will easily lead to fibrosis after a long time.

There are many drugs for clearing lung-heat, but if there is no cough, expectoration, sticky phlegm and excessive phlegm, don't take too many kinds.