Wow... yeah... some people have problem with bad breath... chewing gum is reccommended and some smell bad due to sweat. I think you should tell them, why fear repercussions of them getting annoyed when your planning to avoid them anyway, does not make sense.
I repel people, not due to smell though(: ... But I don't like others smelling bad either! It's disturbing! But again I would tell them to their face because they need to know and there will be people who feel 'why did you not tell me so?' It will make them reflect and change.
Anyway. Again I am glad I don't smell bad, but I won't mind it because I hate people and like staying away from them any how...!! But I would mind it as well, because I don't like to small bad. It feels good to feel good(: ... a little bath as required, change of clothes... under clothes, washing cloths, socks, shoes...
brushing teeth and chewing gum and mouth wash will help...
I don't do anything extra, just wash, brush teeth, wear clean cloths....anyway... I hate perfumes and deos...they repel me a lot actually, so unnatural!
Perfumes are deodorants are just extra, aside that just regular baths and cleans clothes does the job.