Crater-like acne scars?

i have some pretty bad acne. it ranges from regular pimples to big and painful cysts. recently, i had a cluster of 3 nasty cysts on my cheek. they've since gone, but now there are little pits in my skin where thy were. actual indentations in my skin, not just discoloration. how can i lessen the appearance of these? also, i have cysts on my forehead and chin right now. putting a glob of a 10% bp cream on at night shrinks them, will a 10% face wash do the same? my cheeks are a train wrek, with 3 cysts, a few pustules, and countless little bumps. i find that drinking A LOT of water before bed really helps, but i cant sleep well feeling full or needing to pee; is there somethi g i can do to replace this water drinking regimine?