The natural reaction from us after eating someone spicy would be to drink water. But unfortunately, this can only make the situation worse.
What makes your mouth burn is capsaicin. This is natural oil and as we all know, water and oil do not mix. In turn, the amount of water you drink goes to waste as it does not provide any instant relief.
It could also increase the risk of spreading capsaicin in your mouth. So next time you eat something spicy, avoid drinking water and go for a sugar cube instead.