Was sick for the past 3 days. Had a lot of phlegm. Went to the toilet like non stop to cough out the phelgm. At first the phelgm colour was white then after sometime it seems to turn green. Throat was hurting due to coughing out all the phelgm. Went to buy pi PA gao because of this. After that my friend told me that if I had this kind of cough and phelgm I should not be using pi PA gao instead I should be using Woodman’s because pi PA gao nature is sweet it will make the phelgm more and thicker.