<s>[INST] I had a crown on my right side about 2 months ago...it took along time to heal.  Friday it felt like I had food caught so I flossed.  My right eye was hurting too...didnt realize the two were related until I woke up Saturday and I could not chew on that side and the whole side of my face hurt....it is now Sunday and I am still hurting and a little swollen on that side of my face & my gum is white and hurts.  What should I do? [/INST] Hi! Welcome to Chat Doctor. I read your query. Did you get RCT done on tooth before crown? Your correlates with dental or gum infection with pus spreading to facial spaces. This is an emergency situation. I suggest you to visit a dentist immediately. He will take x-ray and remove the crown if required. The Chat Doctor. You need to take a course of antibiotics and anti-inflammatories as per your dentists prescription. Do repeat warm saline rinses if it does not hurt. Avoid acidic or spicy food and beverages. Avoid chewing from the affected side for time being. Hope the answer helps you. Thank you! </s>