Up to 90 off textbooks at amazon canada plus free two day shipping for six months when you sign up for amazon prime for students. Nausea and vomiting are both symptoms of certain underlying conditions and they commonly occur together nausea is the term used for the feeling that you are about to be sick or vomit. Chemotherapy may cause the following types of nausea and vomiting acute nausea or vomiting happens in the first 24 hours after chemotherapy is given delayed nausea or vomiting happens more than 24 hours after chemotherapy is given anticipatory nausea or vomiting happens before a chemotherapy treatment is given. Generally treatment for non serious causes of nausea and vomiting can be relieved with otc over the counter medicine medication that is available without a prescription from your doctor or if known discontinuing the offending cause more severe cases of nausea and vomiting may require medical treatment