<human>: He is on day 15 with out a shower, and is covered in sweat, grease, and god knows what else. It is beyond the point where febreeze works, and I feel like I can never bring anybody back to the room because it smells so bad. He told me today that he doesn't like showers because the running water makes him feel nauseous and prefers baths. However we don't have a bathtub in the building so he is going to have to get used to it. He is overall a nice guy easy live with (other than the hygiene issue, and a few small things like waking up in the middle of the night and being noisy.) Other than that he is pretty good, so I want to find a nice way to ask him to shower regularly. How can I do this nicely?

Can you summarize the given text in a few sentences?
<bot>: My dorm mate is on day 15 without a shower and I need a nice way to tell him he needs to shower regularly.