I'm a 27 year old female with large pimples all over on my back, lower, upper, shoulders and small ones on chest. For the last three years I seem to get them at the same time each year, right before summer (yay! Thanks skin!). When I was younger I had bad acne of my face, but not on my body. Now...well...it's reversed. They are very sore and swollen and not really white heads. What is going on?!