There are several different ways of cooling your mouth down after eating a ghost pepper or other hot pepper.
When you eat a ghost pepper or other hot pepper you can cool your mouth down by chewing on some bread or adding some sugar to your tongue and mouth.
Take a tablespoon of sugar and put it directly in your mouth and onto your tongue.
The sugar can help to cool your tongue down and neutralize the hot pepper spices on your tongue.
You can also eat some milk chocolate or drink a glass of milk because the milk is also good at neutralizing the hot pepper from your mouth and tongue.
Drinking plain water can also help and breathing in an out can also help cool down your mouth when eating a hot pepper.
If you can drink alcohol drinking some beer can also help get rid of the extreme heat in your mouth as a result of the pepper.
Usually drinking some milk and eating some bread helps to cool my mouth down when I eat a really hot pepper like the ghost pepper.