"I cough and have wheezing breath from time to time (every 3 or 4 days), mostly at bedtime. What should I do? Should I be concerned?"

If you are experiencing coughing and wheezing on occasion, especially at bedtime, it is important to pay attention to these symptoms. It could be related to allergies or another underlying issue. It's a good idea to try using saline nasal spray to help clear up any nasal congestion that may be contributing to your symptoms. If your symptoms persist or worsen, it might be a good idea to consult with a healthcare professional for further evaluation and treatment.