Working out is making me break out!

I read through the couple of replies so far and I agree with the first - powder does help because it absorbs the sweat and so your sweat won't have to stay on your back so long. Then about scrubbing, I wouldn't suggest it. Experts (sorry for the lack of resources but I read it before) say that soap is already good enough for exfoliating and scrubbing does more harm than good because your skin naturally sheds itself anyway. If you are going to scrub, use a towelette instead and don't scrub too hard :) If you'd want a "cure" you can buy Eskinol or whatever pore cleansing solution (astringent) for the face and then mix in Dalacin-C (over the counter antibiotic med). Then apply that after shower before bed then again after shower in the morning.

The most likely culprit is the perfumes in the laundry detergent or fabric softener you use. They are great when they stay on your clothes but when you sweat they transfer to the skin and can cause irritation. I went thru two different times in my life when I had to use unscented laundry detergents and no fabric softener because I became sensitive to perfumes. The body chemistry changes several times over a lifetime. Things that you have never been allergic to in your life suddenly make you sick or break out and visa versa. Congrats on the weight loss!

Excellent thread! My wife and I have had the same issue when we work out so I'll be closely reading the great suggestions you get here. Back acne is the worst. Especially since it's awkwardly located and hard to reach.

Well first congratulations on loosing the weight. I am not sure what you should do about the breaking out. Maybe put some powder on your back before starting to work out and that might help with the sweat buildup. Of course, shower right after.