UGGs Discoloured After Washing?

Recently I was following a YouTube instruction on how to clean UGG boots by using Zero detergent and then rinsing off with cold water. I patted the excess water off with a terrycloth and allowed it to dry and stuffed the interior to keep the shape while it dried.

After allowing it to dry naturally it is now discoloured with areas of darker dye sections throughout the boot. It is the chestnut Bailey bow style. Is there a way to fix this discoloration?

By Jane from Ajax, Ontario