Have you tried any AHA lotions or BHA (salicylic acid)? You're exfoliating, which is most likely getting rid of the cause of the bumps (build up of dead skin cells causing congested skin) and probably preventing new bumps, but it doesn't do much for the bumps that already exist; you need to treat the existing bumps.. either with AHA, BHA, benzoyl peroxide, etc.
I'm using Paula's Choice Clear Toner that has 2% BHA in it, which has stopped new spots from forming in the past few weeks (yay) but again doesn't seem to be doing much to those stubborn bumps!
It seems like now my biggish spots have kinda declined, but I'm left with lots of tiny ones - I don't know what's more annoying!