You have finished detoxing and possibly.., maybe.. went a little Wild with your new Woohoo goodies:-) 

Sometimes if we use a little too much product or don't rub it in enough we may be left with white marks or an oil type stain. If the marks are more yellow it's actually sweat staining our clothes. 

Here are a couple of great articles that will explain everything. I'm sure you'll find them helpful. 

Prevent Underarm Stains

How to get rid of white stains 

How to use deodorant past the right way