I bit inside of my cheek and its not healing, its a chunck as big as a pumpkin seed, what should do to relieve the pain?

Cheek bite. If it s the size of a pumpkin seed and is not healing you should see your doctor. At home remedies for mild bites are applying a past of baking soda an mylanta ove rthe ulcerated area three to four times a day. Your docotr could also give you a local anestehetic to apply voer it. Buccal lesions usulaly heal fast but if it is not it is concerning, so see md asap.