<s>[INST] I had a bad upper respiratory infection and started to feel better about two weeks ago. My dr gave me a Z pack at the time as well. I still have a lot more mucus and phlegm than normal and at night I have noticed that I have been wheezing when I breath in and out. Is this just lingering affect of the infection? [/INST] Hello dear, thanks for your question on Chat Doctor. In my opinion you are having bronchitis mostly. Cough with sputum production and wheezing are symptoms of bronchitis. Upper respiratory tract infection is common cause for bronchitis. So we need to rule OIT bronchitis first. So better to consult pulmonologist and get done1. Chest x ray2. PUT (pulmonary function test). Chest x-ray is needed to rule out lung infection. PFT is needed to rule out bronchitis. It will also tell you about severity of the disease. And treatment for bronchitis is based on severity only. You may need inhaled bronchodilators and antihistamines. So consult pulmonologist and discuss all these. </s>