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Nausea is the unpleasant, painless sensation that one may potentially vomit. Vomiting is an organized, subconscious response that ultimately results in the forceful expulsion of gastric contents through the mouth and sometimes the nose. Vomiting is intended to protect a person from harmful ingested substances.
Nausea and vomiting are not diseases. They can be symptoms of many different conditions. Conditions causing nausea and vomiting include cough, food poisoning, infections, medications such as cancer chemotherapy drugs or opiates, migraine headaches, hyperemesis gravidarum (morning sickness during pregnancy), motion sickness or seasickness, over-eating, and post-operative nausea and vomiting. Nausea and vomiting may also be .... Read more
It is thought that vomiting is controlled by the vomiting center located in the brain called the chemotrigger zone. Nausea is less well understood. The timing of the nausea or vomiting can indicate the cause. When it appears shortly after a meal, nausea or vomiting may indicate a mental disorder, such as bulimia, or a peptic ulcer.
Medical history and physical examination: A comprehensive history and physical examination can often reveal the cause of nausea and vomiting, making further evaluation unnecessary. Doctors will ask about the individual's medical history, surgeries, and medications. A thorough history of recreational drug and alcohol use or abuse is equally important.
Home treatment:Healthcare professionals recommend that individuals experiencing nausea and vomiting: drink clear liquids only, but in specified amounts depending upon size and weight of the individual; eat no solid food until the vomiting episode has passed; get plenty of rest as more movement and exertion may worsen the symptoms of nausea and vomiting; and stop all medicine temporarily until the
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