Nausea is a common symptom of many different conditions. Medical professionals usually associate it with stomach discomfort and the possible urge to vomit. Nausea is not a condition or illness itself.

Nausea describes when a person feels as though they might vomit. Constant nausea is the feeling that lasts for long periods, which may come and go. It typically occurs due to an underlying condition.

Over-the-counter options like bismuth subsalicylate and antihistamines can help treat nausea. Prescription medications such as ondansetron are effective for more severe cases of nausea. Knowing the ...