<human>: hi Dr,I am really tensed plz suggest me .i have cough from last 40 days.intially i coughed phlegm of green colour,dr give a cough syrup and few tablets .now it is tranarent,with black particles.i dont know what these black particles may be it is small worm :( .,i have a problem of itchy roof of mouth from around three years ,not contuosly but some time it happen .please tell me is there any serious problem, :(
<bot>: Hi welcome to Chat Doctor... The black particle in sputum can be from many causes like .......-Environment pollutants -fungus infection -cancer - Chat Doctor. . Any cough more than three weeks should be evaluated through digital chest x-ray for proper diagnosis .... Also investigate with CBC, sputum examination to diagnose your case ... If needed to perform spirometry ..... According to cause management done . Ex.if infection there antibiotic given .... If needed sputum culture done to choose antibiotic .... Also rule out TB by sputum examination and manitou test . Hope your concern solved. Consult pulmonologist ...