How do I get rid of bad breath in my 10 months old baby?

The following are some info about my baby so that one can diagnose easily:
1. He is 10 months old.
2. He is bottle fed.
3. He drools a lot.
4. It seems that his drool smells.
5. He is normal means not suffered by cold or anything else.

My baby is getting her 4th tooth, and she has a nasty rash around her mouth and bad breath. Whats going on?

Im not sure if its the binki causes the bad breath and rash, but I really need to treat this, and I dont think its severe enough to go to the doctor.

What causes a baby to have bad breath?

My boy isn’t sleeping as well as usual, actually he’s a having a really hard time, is off his food and milk, and just miserable all day… and his breath smells really bad. What causes bad breath in a baby?
He’s 11mths. It’s not normal bad breath from not brushing teeth, it’s horrible foul smelling bad breath, I’m 100% sure he’s sick with something, just wondered if bad breath was a clue to what he’s sick from…

How to ease my 10 months old baby bad breath?

No matter how often I brush his teeth, he still has bad breath, any suggestion?

Have you ever known a baby to cry when the caregiver or relative holding them had bad breath?

Or do you think that babies are less bothered by bad breath. I have a coworker with bad breath and he has a baby boy. I wonder how his baby tolerates it when he kisses him and holds him. I never met his baby but when he talks about him I wonder about it.