If the cause of nausea and vomiting is known and recurs , it is important to get help in treating the underlying disorder.
Ginger Root is an excellent remedy for nausea, especially the nausea of motion sickness.

Slippery Elm Tea is another herbal approach to relieving nausea.

If vomiting is also involved the sufferer should try and eat only plain yoghurt mixed with a little honey.

Whatever the cause, it is important for the person who has vomited a great deal to take in as much fluid as possible without upsetting the stomach any further. Sip clear not fizzy fluids. Don't drink much at any one time, and work slowly back to a normal diet.
Seek help if:

- there is bleeding (bloody or black vomit) or severe abdominal pain (call immediately)! Some abdominal discomfort accompanies almost every case of vomiting, but severe pain is not common.
- a headache and stiff neck are also present.
- there is lethargy or marked irritability in a young child.
- there are signs of dehydration.
- a child is unable to retain any fluids for eight hours or more, or the vomiting is recurrent.
- an adult is unable to retain any fluids for twelve hours or more.
- nausea persists for a prolonged period of time (in a person who is not pregnant)