B-5 can take up to six months to work, I have done 10 grams for 4.5 months, I broke out initially then cleared up quite well. The beginning of Jan. I broke out for 3 weeks, but now I am clearing again. I dunno if I'll keep breaking out but its:
1, making my pores samller and smaller every day, I have smooth, matte skin on places that are'nt broken out. 2, The breakouts that I do get usually die fast, and don't reach the surface of the skin, but still leave rednnes in the area. 3, Oil is very minimal on my skin, I get oily a couple hours before I wash up but I used to have veyr oily skin all day, even 1 hour after I washed.
I say give it some more time, If I keep breaking out in 2 months then I'll consider quitting but saty on it for at least 6 months to give it a good chance. You never know it might clear you up especially if you acne was moderate/severe it takes a bit longer.