2. Be careful not to eat too hard food, food with thick fibrous tissue and sticky food (chewing gum).
If you eat hard food such as apples, you can cut them into pieces and put them in your mouth. Not that you can't chew, but try not to chew with your front teeth. If it is sticky food, you should try not to eat it, such as chewing gum and bubble gum, because it is easy for them to loosen the back tape, and these are basically nutritious. Reasonable arrangement will not lead to malnutrition, so don't worry.
3. The doctor exerts force on your appliance, and it hurts for about 2-3 days. Generally tolerable, but it is just a feeling of sore. The pain in the process of correction is not a problem at all. Are within the tolerable range.