A comment about persistent cough and taste abnormalities after COVID. How long to wait until seeing a doctor about the cough?
A residual cough is very common after chest infections including COVID. Normally if the cough lasts for more than 6-8 weeks with no sign of improvement it may be a good idea to ask for a medical opinion in your case. Most often there may be some ongoing inflammation that may improve with time, or it could be driven by other issues you may be having (such as acid reflux, post-nasal drip from chronic rhinitis etc.). Sometimes the cough may be the sign of a complication from the chest infection or something more serious. Knowing the cause of the cough is the most important thing (if it is not going away on its own).
You should always see your doctor if you are worried about your health!