How do you deal with body odor?

I also have a little body odor. Usually it's okay. If I sweat, the smell will be a little strong. First, I don't know what to use to deal with body odor, so I have to hold my arm so that others can't smell my body odor. Also, I often go to the toilet, wipe my armpits with paper towels dipped in water and wipe off the sweat.

Second, when I was a sophomore, I found a body lotion, which was specially used under my armpit. At the same time, shave off the hair under your armpits, and then apply body lotion similar to perfume to cover up your body odor with that fragrance. But after shaving the armpit hair, it seems that the body odor is not so serious. But don't wear too much, or too much perfume will stink.

Third, before graduating from senior three, my classmates introduced me to a body lotion that can remove body odor. It is also used for spraying, but you don't need perfume to cover up the body odor, but keep it from emitting, which usually lasts for three days and has no perfume smell. I think this is quite useful.