1. After contact with COVID-19 vaccine, you should eat more foods rich in vitamins and protein in a short time. In other words, you can eat more green vegetables, seasonal fruits, soft and digestible foods, and foods such as soy products, chicken and fish.

2. Try not to eat hard food, indigestible food, and irritating food such as onion, garlic, mustard and pepper. Avoid drinking strong tea, coffee and some exciting drinks, and don't drink alcohol.