Hi Vanessa.
Unfortunately coughs, cold, and infections are a way of life for us mmers so it’s not unusual. Even when not neutropenia our defences are low. The constant being under the weather will get anybody down and as long as his blood tests come back ok there’s not a lot that can be done.
You can ask for a second opinion and it won’t be held against Stewart though I suspect that it won’t change much. That’s obviously only my opinion and I could be wrong.
Try not to worry too much, easy to say hard to do, and stay vigilant. I go through what you describe every winter and usually end up in hospital at least once in the new year!
Every day is a gift.
Andy xx