aggravation from Sulphur 30c

I have been treating a woman with atopic dermatitis. She had thick rashes at all the folds and bug-bite-like bumps on her lower legs and forearms. This had been treated successfully only with prednisone. Then it would go away for a while and eventually start over again. She is a potter, along with other careers. She had responded well to a first acupuncture treatment from me and then regressed a bit. We decided to add homeopathy to the mix and she took two doses of Sulphur 30, one pill each from a foil press-pack, on two consecutive days. She is in a pretty major aggravation. I have found enough info in here to know we shouldn't have proceeded this way with Sulphur. Her arms, and to a much milder extent legs, are swollen. The rashes are much larger, but in some ways look better---not as raised and duller in color. Some of it--especially at the back of the knees looks dry and powdery-white on top. The reaction started 5 days ago. She does not feel like she is ill, but the swelling is disturbing. What should be done at this point to mend the aggravation?