Nausea is sometimes accompanied by vomiting and sometimes it is not. It depends on the severity of the nausea which may also depend on how critical the underlying reason is. Remedies for nausea or the treatment is very necessary if it comes with vomiting. Vomiting expels water and other substances such as electrolytes. Electrolytes are very important in maintaining equilibrium in the body. They are essential in regulating the hydration of the body to its cellular level and the blood pH. A change on these things could affect the body in great degrees. Enzymes are proteins that play an important role in the human body. They are sensitive to changes in the blood pH. If their structure is altered due to changes in pH and temperature they will work effectively. Electrolytes are also important for the muscles and neurons. So if the person experiences severe nausea and vomits again and again, he or she must replace what he or she lost through oral rehydration therapy or better yet that person should go to the hospital