I am guessing you mean chemotherapy which is chemical treatment for cancer. There are a wide variety of chemo drugs and each have their own side effects. If you or someone you know has cancer and you want good information and good support, I highly recommend www.acor.org It is a listserve so folks respond when have time/feel up to it. I lost both parents to cancer and we all benefitted greatly from the knowledge and support we found there. Best of luck......and hope I helped a little.