<s>[INST] I had a bit of cold but heavy chest congestion from last 10 days and I took lot of Antibiotics,Anti allergic and antihistamines in terms of capsules,tablets and syrup. I got my Blood test,Xray and ECG report which is OK.Now I am coughing dry as nothing except spitting comes out of throat but chest seems to be blocked and not breathing to relax.Please advise [/INST] HI, thanks for using Chat Doctor If the chest feels tight, and you are finding it difficult to breath and relax then it is possible that there may be constriction of the airway passages. This can sometimes occur as a result of respiratory tract infections. The use of a bronchodilator, either oral or inhaled would be helpful. You should consider re visiting your doctor for an assessment to determine if this is the cause of your symptoms. I hope this helps </s>