Tea tree oil is very beneficial for our skin and hair, but it is also helpful in removing the smell of the mouth, you can make rinse at home from it.
Whenever we go out to eat outside, we eat fennel on the way back because it removes the smell of the mouth. If you also want to get rid of the stench of the mouth, then you must also consume fennel.
Boil the pomegranate peel in water and then rinse it with that water, this will relieve you of the smell coming from your mouth.