I have cleaned my teeth recently & it pains near the gum whenever i eat food like rice & some others. what should i do 2 avoid it?

Gum recession?: Can't tell you without visualization and radiographs. Since you've been to your dentist recently, have them take a look to make sure everything is ok.

Find out why: You shouldn't avoid either eating whatever you like or keeping your teeth and gums clean and healthy. If you have a problem with either, see your dentist who can determine why you are experiencing discomfort and then suggest appropriate treatment if needed.