My husband has a lot of phlegm all day long. He has a lot of clear, cold drainage like water. What do we do for this?

Do you mean that his nose is running, and what comes out is clear and cold?

Does he have a cold? Allergies?

This is probably a silly question, but assuming the clear, ?cold (still baffled by that) discharge is streaming from the man's nose - the PCP did have an actual look up it, did he?

If not, take your husband to a walk-in clinic or the ER and get somebody to LOOK.

Google CSF rhinorrhea.
I saw this condition on Dr Oz recently.

CSF rhinorrhea is the drainage of the fluid which surrounds the brain into the nose (CSF =cerebral spinal fluid + rhinorrhea = fluid draining from the nose).

Mw, please remember that, even if we were medical professionals on this site, it would be unethical to diagnose and attempt to treat someone without a hands on exam, wouldn’t it? Your first call if something is happening with hubby should be to his primary care doctor. Let them decide if he needs to be seen or referred to a specialist. Yes, it’s expensive. Yes, it’s a pain. And yes, this is what you need to do.

Otorhinolaryngology or commonly called ENT docs.

Cold? How cold? And how, cold?

Where is this discharge coming from?

Maybe go see an ear/ nose / throat guy . You didnt really give alot of info. Is it out of his nose or mouth? Is he choking ? Is his breathing effected?