 [ Symptoms ] i have a itchy rash that comes and goes what could be causing this  the rash appears in different areas of my body for an example a rash showed up on my wrist and stayed a while and went away later the same day it appeared on my stomach and then on my thighs etc its itchy while it is present at one point my hands first turned red and then start to itch really bad to the point i had to wash my hands repeatedly i work in the medical field so i wash my hands a million times a day what could be causing this reaction [ Disease ] although cancer related fatigue is a common and often expected side effect of cancer and its treatments you should feel free to mention your concerns to your doctors there are times when fatigue may be a clue to an underlying medical problem other times there may be treatments to help control some of the causes of fatigue finally there may be suggestions that are more specific to your situation that would help in combating your fatigue be sure to let your doctor or nurse know if you have increased shortness of breath with minimal exertion uncontrolled pain inability to control side effects from treatments such as nausea vomiting diarrhea or loss of appetite uncontrollable anxiety or nervousness ongoing depression