Dish Soap Stain on Wool?

How to remove color stain of the yellow detergent from my wool scarf? I dropped some "Trix" Lemon Dish washing liquid to remove many small oil stains on my wool scarf, then found the detergent left big yellow marks on my light pink wool scarf.

I was stupid but I really love the scarf, which was a gift of my best friend. Would anyone help me to save my scarf?