Do you know what was the cause of his vomit? Was it due to indigestion, stomach flu, etc?
I typically feed my boy watery porridge (white rice) during the first 1-2 days. You can put in 1 vege and 1 meat, nothing too fancy during this period. Keep to vegetable that is meant for 6-8 month old babies (ie. spinach, pumpkin, broccoli) as they are typically more nutrient dense and yet easy on the stomach.
You can ease him back to his normal diet after 1-2 days.
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