Baby’s got a cold

So my 16 week old has a runny nose, lots of sneezing and a little bit of a cough going on 2 days now.

We took him to his pediatrician and she said there’s no infection and to give Tylenol only if he’s got a fever which he doesn’t.

How can I make him comfortable at home? It’s 90 degrees where we live and we’re dying to turn the AC on but feel bad bc LO has a sore throat it seems like. His little voice is hoarse and raspy.

Is there anything I can use on him? I’ve seen baby Vick’s but many moms don’t recommend using it on baby this young even though the packaging says it’s safe, the brand was zarbee.

Any experienced moms on here who can give this FTM mom some advice?

Thank you!!