Nausea and vomiting are common side effects that are caused by cancer treatment (chemotherapy and radiation therapy). Nausea is a discomforting feeling that a person may throw up, and vomiting is when a person may actually throw up. It is not at all necessary that a person receiving cancer treatment might have symptoms but the severity of these symptoms depends upon the chemotherapy medicine and dosage. Usually, nausea and vomiting get better after 1-2 days after chemotherapy but sometimes it can get worse and can take up to 3-4 days to get completely resolved. Symptoms after radiation therapy may or may not occur and if it occurs it depends upon the body part on which radiation is given and the dosage of the radiation.


There are different methods by which these symptoms can be reduced or prevented.

  • Medications that prevent nausea and vomiting can come in form of pills, skin patches or tablets that melts on the tongue.
  • Have plenty of fluids to prevent dehydration.
  • Quantity of foods and fluids intake before chemo and radiation therapy.
  • Avoid spicy, greasy foods.
  • Sometimes CBD oil helps in reducing nausea and vomiting.
  • Avoid activities that could trigger nausea and vomiting.
  • Eating yogurt, vanilla flavoured ice-creams and popsicles can help in reducing symptoms.