Conversation: The conversation between human and AI assistant.
[|Human|] My 29 year old son has Crohns and is under his local hospital.   He has regular blood tests and B12 and tonight received a phone call from his GP informing my son that his white cell count is dangerously low.  His medication is Pentasa and Mercaptopurine, GP advising him to stop immediately taking the latter.   My son has had a constant headache for about 5 days now and has been complaining of extreme tiredness all the time.   The GP has contacted my sons hospital with a view to getting an urgent appointment.   I am extremely worried about him.   Are you able to reassure me that  with help the cell count will recover back to normal?
[|AI|]  Hi, dairy have gone through your question. I can understand your concern. He was taking mercaptopurine.  It is known to cause low WBC count.  You should stop it and consult your doctor and take alternative Chat Doctor.  You should regularly monitor your WBC count. It will come back to normal within few days. Hope I have answered your question, if you have doubt then I will be happy to answer. Thanks for using Chat Doctor. Wish you a very good health.