Decreasing the sensitivity may be as easy as placing a gel fluoride, under your dentist’s instruction, in your bleaching tray for an hour or so. Other materials may be used to address the sensitivity you may experience. Check with your dentist for the best options for your paticular needs.
You should discuss your goals, budget, and pain tolerance with your dentist in order to help him/her determine the procedure, or combination of procedures, that will produce the best results for you.