Place into the washing machine and cold water on a delicate cycle
Use a small amount of mild detergent. You may use a little bit of Oxy Clean
If stains persist, make a paste with Oxy Clean and water and apply to affected area and gently rub with a soft cloth. re-wash following above instructions.
Hang to dry - NO DRYER
The pad must be completely dry if you want to avoid the formation of bacteria