First up, it’s worth giving the tried and trusted home remedies a go. Have a cup of tea and some dry toast before you get up in the morning. Drinking ginger tea and eating kiwifruit are said to prevent nausea, and nibbling on a few salty biscuits or crisps can replace lost electrolytes. Acupuncture has worked for some women.
But if these measures don’t work, and you are vomiting frequently or notice signs of dehydration, contact your obstetrician or another medical professional.