Your Ugg Boots are not waterproof so you will need to waterproof them by UGGTM Water & Oil Repellent spray. Just spray your boots, allow 10 min to dry and wear them away! Waterproofing your sheepskin boots will protect your boots from cooking oil, dirt or water and increase their life. Be aware though, that once your footwear get wet, you need to apply another coat after they have dried. The first time this coating is applied should ideally be when the footwear is new.
Reshape by stuffing with paper towel. Allow to dry naturally and slowly - DO NOT dry in direct heat or sunlight. You will notice once the footwear have dried that they have shrunk slightly but this is normal. After wearing them for an hour or so, they will go back to the normal, warm and comfortable state you are used to and at the same time, be clean.