You can try the following steps to remove the odor from the wool blanket:
Soak the blanket in a solution of equal parts white vinegar and water for 30 minutes.
Wash the blanket in lukewarm water with a small amount of baking soda added to the detergent.
Rinse the blanket thoroughly in lukewarm water and hang it to dry, avoiding direct sunlight.
Once the blanket is dry, store it in a well-ventilated area to prevent any musty odors from developing.
For more information, you can also contact me. I will do my best to guide you.