<s>[INST] I have a cough which isn't getting worse or better - have had for the past 4 weeks.  Little if no phlem .. it is a similar feeling to having breathed in dust & not being able to clear it away - specifically one side my left - no problems sleeping just when I get up until i go to bed [/INST] Hi Dear,Welcome to HCM.Understanding your concern. As per your query you have cough with phlegm which is due to upper respiratory tract infection/ lung infection. Need not to worry.I would suggest you to  take antibiotics such as Levofloxacin along with cough expectorants. You should take mucolytic agent as well. You should consult a Pulmonologist and get evaluated and go for blood tests, throat swab culture and chest x ray to find out exact diagnosis and start treatment. You should do warm saline gargles and avoid spicy and chilled foods. You should use mist humidifiers in room.Hope your concern has been resolved.Get Well Soon.Best Wishes,Dr. Harry Maheshwari </s>