Could you recommend a red light lamp?I'd second this 250 watt chicken lamps (use 2 or 3) to heat the abdomen up a couple times a day. Those also provide red light. @haidut has said in the past to take Methylene Blue about 30 minutes before red light therapy for maximum benefit. When using heat therapy make sure to keep the blood sugar levels up with juice or something so you don't stimulate a cortisol dump.
Another thing to try is to sleep under some red light all night long. Don't go for the heating effect at night, but shine at least one of the lamps on the skin all night long. Wear a sleep mask if she needs to, and keep some salted orange juice nearby to keep the blood sugar levels up.
And should orange peel not be anticancer as well, not the write only the peel.