<s>[INST] I m allergic to bleach. I get really sick (green phlegm ) coughing, and feeling weak. My mother-in-law used bleach the other day, and I couldn t get away from the smell. My cough is horrible and I ve been spitting up the green phlegm after constant cough attacks. What should I take to stop this horrid coughing and phlegm? [/INST] Hello, You are having hyperreactive airways and may indicate you have underlying asthma. However, bleach releases chlorine that is a respiratory irritant, and it does not necessarily mean you have asthma. If you do not cough most of the time and feel breathless when exposed to other types of smoke, dust you do not need a lung function test. A Chest X-Ray is important to know that you do not have any lung patches or shadows and the source of the green phlegm. Sputum c/s is a must before starting any antibiotics. A combination of antihistamine and montelukast (Singular) with (as per sputum c/s report) +/-azithromycin 250 mg twice daily for 5 days. Avoid using cough syrups. Thanks. </s>