My 5 month old son has been throwing up since last night. what can i do? how much pedialyte should i give him?

Start slow: Start with an ounce or two at a time. If he cannot keep that down, see your doctor.

Depends: If baby is still wetting diapers every 6hrs he is holding on to enough to try home care. Start withbreast milk or electrolyte solution in small amts every 10 minutes (1/2-1oz) either by bottle or a tablespoon.After a while with no barfing you can up the volume and decrease the frequency.If baby is not taking well, too sleepy or you get a bad vibe, contact your dr & discuss timing for an evaluation.