If you have a more serious problem then you should get to the hospital. The closest hospital to Disney World is the Celebration Health Hospital located just about 15 minutes away. Their phone number is (407) 303-4000. If you don't want to go to the hospital then you can always go to Buena Vista Urgent Care open Monday thru Friday 8 am until 7 pm and Saturdays and Sundays 8 am until 3 pm. No appointments are needed and they accept most insurances.
Don't forget to pack the following items for your vacation:
- band aids
- children's Tylenol
- bug spray