How to tell my father in law he smells horrible?
I (34F) need advice. I've been with my husband for 3 years now and we visit his parents pretty often, a few times a year (we don't live in the same country, it's about a 3 hour flight).
My father in law (69M) smells absolutely horrible. At first, I thought it was his breath. My mother in law said he had a rotten tooth and that's why his breath smelled and eventually the rotten tooth was removed at the dentist. This has not helped his breath from smelling rotten. He drinks 3 double espressos a day and one glass of water at lunch. I think we are all clever enough to see how this impacts his oral hygiene. I have never seen him take a shower. Not after swimming in the sea. Not on any regular day. He often wears the same clothes for a week at a time before washing them. I'm not against this per say but I think it's contributing to his smell?
We've been staying here for a month this summer as I'm pregnant and my husband can work from home. My pregnancy sense of smell is obviously heightened, but I've tolerated this for 3 years and I can't take it anymore. How do I approach this subject? Do I talk to my mother in law? Do I talk to my father in law directly? Do I ask my husband to talk to him? It's at the point where I cannot sit near him and I have to cover my nose with my shirt if we are in the car together, and sometimes we have to drive 3 hours to go to certain destinations. I'm at my wits end and I can't handle it anymore. It's clear he has bad hygiene and bad oral hygiene but everybody else just seems to tolerate it and leave him alone. I don't get it.
Edit: added our ages and gender for context