My elderly father is due for an annual check up but I’m putting it off until at least March.
Your Dad would likely be better off without doctors, or at least main stream docs. Look into naturopathy. Also look into making your own colloidal silver, the most powerful antibacterial, antiviral natural substance. (see ebay)
You are right to wait! Our doctor told my husband that he probably caught it IN THEIR WAITING ROOM when he was there a couple of weeks ago for a sinus infection. We are taking extra Vitamin D.