Naked Rat/ New Owner

I agree with Fofo, if the rat doesn’t have other rats he must be lonely, especially if he also just lost his companion. He’s also in a new place with a new human, so there’s that added stress. I’m assuming he’s a double Rex and not a ”true” hairless rat, correct? The eye issues can be common with Rexes and double Rexes, since their eyelashes curl and can curl toward the eyeball, irritating the eyes. But with everything you’ve described, he really should see a vet. A lot of vets are booked pretty solid right now, but rats go downhill really quickly so it’s best to try to get in on an “urgent” basis if the vet office offers Papa ointments several days to a week away. You didn’t mention what the other rat ”got into” but there’s also a chance that the boy you’ve got ate less of it, but it is slowly shutting down his system. Too many possible reasons for the boy to be sick…which is why seeing an expert is the best option. Good luck to you and your ratty boy…