My mother has stage IV lung cancer. She has been on an EGFR inhibitor called Iressa for almost 3 months now and is responding very well to it. Besides the rashes on her face and body, her main complaint at the moment is that she experiences intermittent episodes of itchiness felt mostly on her back. At times, she describes her bouts as "1000 ants crawling and biting her". These episodes seem to come on more often when she is exposed to hot weather, doing physical activity, or stressed out. However, in order to relieve the symptoms she would need to stay in a cool area, stop the physical activity, and try to relax.
I was just wondering if this is a normal response to the medication and is it any cause for concern? Also, is there anything she can do in order to relieve her symptoms to improve her quality of life?
Looking forward to hearing back from anyone with valuable advice.