Scratchy wool can be a nuisance, but there are a few simple things you can do to soften it up. One method is to soak the wool in a solution of warm water and vinegar. The vinegar will help to break down the fibers in the wool, making it softer. Another method is to add a fabric softener to the washing machine when you wash the wool. The fabric softener will coat the fibers in the wool, making them smoother and less scratchy. You can also try using a hair conditioner on the wool. The conditioner will help to moisturize the fibers in the wool, making them softer and more pliable.
There are a few important things to keep in mind when softening wool. First, never use hot water on wool, as this can damage the fibers. Second, always test any new method on a small area of the wool first, to make sure it does not damage the fabric. Finally, be patient, as it may take a few tries to get the wool as soft as you want it.