First it has to be understood that all the side effects are temporary and will vanish in course of time. Depending on the site of radiation treatment, the symptoms will vary. Diarrhoea, dryness of mouth, mouth soreness, difficulty in swallowing, loss of appetite and taste and abdominal cramps are some of the side effects due to radiation. Chemotherapeutic drugs also can cause severe discomfort. Loss of hair, nausea, vomiting, diarrhoea, anaemia are some of the severee complaints. As in the case of sickness caused by radiotherapy, the sickness caused by chemotherapy also vanishes 2 to 3 weeks after completion of treatment.