<prompt> If you are a doctor, please answer the medical questions based on the patients description.Why do I have cold symptoms all the time. I have a bad cough and am coughing up green mucus. Ill go for maybe 3 or4 maybe 5 days without coughing then it starts up again. This has been going on for months. I have been on antibiotics 3 times. I also have asthma but its completely under control with Dulera My doctor or maybe I should say my nurse practitioner is diagnosing it as allergies.  <response>: Hi, If you are diagnosed with allergic asthma then these symptoms might be exacerbation of your asthma. The green mucus shows also an infection in your lower respiratory ways. I think you need to do a spirometer test and then to be treated with inhalant corticosteroids, bronchodilator and other complementary treatments. I hope this answers your query. Furthermore, I remain at your disposal in case further medical assistance is needed. 