I am so sorry about your mother-in -law. The best thing is to try to get her to feed herself with guidance from someone. Take a spoon and wrap a towel or paper towel around the handle to build it up and get her to hold it. You may have to help her get food onto the spoon and help guide it to her mouth but that helps to makes the brain learn. If she doesn't do anything for herself she will lose more skills.

Also, the more she uses her weak side, it will get stronger very gradually. Is she getting Physical and Occupational Therapy. That should help because they can teach you how to manage and get her stronger.

Again, I am so sorry for what you and your husband are going through. Please take care and don't over do it yourself! My best to you both.