My mom is taking cancer medicine called Sorafenib that is still under trial. Meaning, "CAUTION: NEW DRUG - LIMITED BY FEDERAL (OR UNITED STATES) LAW TO INVESTIGATIONAL USE." She had to stop taking it for a couple days because she started getting a rash on her face. I went to the oncologist with her and my sister to see what the problem was. The doctor said that patients who complained of rash usually have better overall effects from the drug. I hope that's true.