What should you know about oral rehydration salt for vomiting?

Vomiting removes fluid and salts, and drinking a large amount at once may trigger more vomiting. ORS provides a measured combination of glucose and electrolytes that helps the intestine absorb water. It supports hydration but does not treat the cause of vomiting.

Vomiting can occur with gastroenteritis, food poisoning, migraine or other conditions. Severe or unusual symptoms may need assessment rather than home rehydration alone.

Mix the complete sachet with the exact amount of safe water stated on the packet. After vomiting, pause briefly, then try a teaspoon-sized sip or another very small amount at frequent intervals. If it stays down, gradually increase the amount. Continue breastfeeding when possible, and return to light, usual foods as tolerated. Do not mix the salts with juice, fizzy drinks or extra sugar, and do not guess the dilution.

Get urgent medical help if every sip is vomited, the person cannot drink, urine becomes very scarce, or there is confusion, fainting, severe dizziness, blood or coffee-ground material in vomit, green vomit, severe abdominal pain, a stiff neck or a severe headache. Prompt assessment is also needed for persistent vomiting, a possible head injury, or a baby or older person becoming weak.

Ask whether the vomiting pattern suggests infection, migraine, gallstones, pancreatitis or another cause; how much fluid is suitable; and whether an anti-vomiting medicine or examination is needed.