ok so i wana clear up my backne i heard 2 take a bath in this stuff (apple cider vinegar) i also heard 2 rinse with vinegar after a shower so im gona rinse withthis stuff since i cant take a bath ( i have a standing shower which means no tub) how do i apply it? how much? do i rinse it off with water after putting it on or do i leave it on my skin till my next shower? do i have 2 rub it in? and if i was to take a bath (at a frieds house or something) with it would i rinse it off with water after the bath? and is the bath all apple cider vinegar cuz like i'd have to buy like 20 bottles lol i kno these r stupid ?s but i wana do it right.