Coffee, Tea: Health experts say that you should not drink water even after drinking hot drinks like tea, coffee or hot milk. This is because drinking hot drinks and then cold water can lead to many problems. Mainly, the risk of unhealthy problems like gas, acidity and weight gain increases. Spicy Foods: Eating spicy foods makes you very thirsty. We drink a lot of water to reduce the burning sensation after eating them. But drinking water after eating spicy foods spreads the burning sensation all around your mouth. Not only that, the burning increases. This causes stomach discomfort and trouble.