I have a co worker with horrible cystic acne. I have known of and used DMSO dimethylsulfoxide since it's anti oxidant properties were discovered by my mom and her boss Dr Robert Herschler in 1963. My mom witnessed Herschlers accident and saw how DMSO reversed the effect of the mustard gas burns on his face and eyes. I looked at this site to see if DMSO would help acne to find a thread from 2014 by Sirius Lee which described successful treatment of acne with DMSO. My family specialized in forest product research and was centered in the controversy around the FDA ban on DMSO research in 1965. My brother was expelled from college in 1973 for proposing to use DMSO as a secondary pulping agent to create Nano Crystaline Cellulose as his senior project for his Pulp and paper technology BA. I'm fully aware the FDA is completely against the use of DMSO on humans and have even pulled from veterinary uses. Non the less I use it as a treatment for my arithritis, tendonitis, carpel tunnel syndrome and am experiencing success with gum disease, gingavitis. Along with MSM methylsulfonylmethane- aka dimethylsulfon or DMSO2 These chemical siblings are the chemical core of many organic reaction in our bodies. Both simple molecules that act as bonds with protiens to make cell walls flexible and escort amino acids to reactions. delivering materials to injury sites and removing damaged parts of cell and repairing injured cells these molecules are at the base of our immune system function. So it's logical the consider that acne is an inflammatory condition and out of balance immune response that DMSO and MSM can remedy this. I have seen the effect of DMSO on traumatic crushing injuries, radiation burns from x-rays and large contusions and road rash from accidents reverse in a dramatic way.So Iintend to ask this young man to allow me to photograph his cysts, apply DMSO and document the results in time lapse photography. Many of the side effects of DMSO are not from the DMSO it's self but impurities and adultrants, contaminants on the skin. 99.995%pure DMSO has no smell, leaves no aftertaste in you mouth and has very little irritation to the skin except for a warming feeling as it has an exothermic reaction with water in our skin. Prices vary from $30.00/oz- $35.00/gallon. I buy gallons of DMSO 99.995% pure. Don't ever use anything less pure . I also take MSM which I purchase in bulk for $17.00/kilo. I take 20 gr MSM daily mixed with filtered water.