<s>[INST] Ive had a deep bronchial cough for a couple weeks. It is not uncommon for a head cold to become this loud cough. The tightbess is gone and I thought I was getting better until yesterdayn whenI became tired and the cough started to leave a metallic taste in my mouth. Ive read my dental inplants could be the cause or possibly this has turned into Bronchial infection. Will it go awa?   Am I contagious?  Should I see a doctor? (Im a big fan of letting my body - not meds - heal itself.)Thanks [/INST] Thanks for your question on Chat Doctor. I can understand your concern. In my opinion, you are mostly having post infectious bronchitis. It is common after viral upper respiratory tract infection (cold). And cough with expectoration is common symptom for this. So better to consult pulmonologist and get done clinical examination of respiratory system and PFT (Pulmonary Function Test). PFT will also tell you about severity of the disease and treatment of bronchitis is based on severity only. You may need inhaled bronchodilators and inhaled corticosteroid (ICS). If you don't treat this in early stages, this will cause breathlessness also. So better to consult pulmonologist and discuss all these. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. </s>