Stubborn Severe Acne

I am a 32yo female. I am suffering from very severe and stubborn acne on my face, with the majority around my lips, chin and cheeks but generally allover. I never had a problem with acne (AT ALL) as a teen, but after i had my son is when my problems began. I used Proactiv with some good success for quite awhile (many years really) but have since stopped using bc of the ingredients, concern of long-term affects and the price. This is when my problem seemed to have resurface and worse than ever; this was approx 8-9mths ago. Some suggest it may be a food allergy - yeast? soy?. I am a vegetarian. I eat a pretty good diet but if my finances were of a higher caliber I would surely consume much better. I eat mostly, fruits, veggies, breads, pastas, cheeses; I drink lots of water and teas not really any juices, rarely coffees honey for tea and raw sugar on the occasion I am consuming coffee. I am typically a cold person - my hands and feet normally cold. Though I do not enjoy the heat either. I prefer neither extreme. I tend to have a heavier period, though it is pretty regular. I use the copper iud (paragard) as birthcontrol. just got this last April 2008; maybe a copper allergy? doubtful, im sure.
Currently I wash my face with Dr. Bronner's Peppermint soap, Hylands AC Cleanser (more like a toner) and Nelsons Acne/Pimple gel and I just started using Boiron's Calcarea Sulphurica 30c (5 pellets, 3 times a day). Does this seem appropriate? Someone else suggested liquid Sulfur drops to me; any thoughts on this? If so, what potency and frequency?
Please let me know if there is any additional information needed and I appreciate any and feedback.

Thanks!
Annie