Take Mathulanga Rasayanam. it's available at All Ayurvedic medical shop. it's a herbal preparation act well with out any side effects. it's good to consult your near by Ayurvedic doctor near by you before taking this medicine

Hi, Hyperemesis gravidarum is the most severe form of nausea and vomiting in pregnancy, characterized by persistent nausea and vomiting associated with ketosis and weight loss (>5% of prepregnancy weight). Eat when hungry, regardless of normal meal times. Eat frequent small meals. Avoid fatty and spicy foods and emetogenic foods or smells. Increase intake of bland or dry foods. High protein snacks are helpful. Crackers in the morning may be helpful. Other suggested foods include herbal teas containing peppermint or ginger, other ginger-containing beverages, broth, crackers, unbuttered toast, gelatin, or frozen desserts. Preconception use of prenatal vitamins may decrease nausea and vomiting associated with pregnancy. Consult Obstetrician....