Hi Gramma! I hope you are functioning well today. I have yet to try CBD cream, but I have great luck with CBD gummies for MG! However, I notice a difference with a very high mg, 1000, but I have a high THC tolerance. I would start with the dosage typically sold in stores is 25mg, which I would begin with. Just know there is a higher dosage available online, which might be needed to combat MG symptoms. It helps my appetite from medications as well as weakness and fatigue.
I also have had luck with specific muscle rubs that are handmade rather than over the counter! Sadly the one I like now isn't sold online, or I would recommend it.
CBD may also work with you only in different forms, so experiment with it. Just try to not spend too much on one item without knowing it works for you. If you purchase CBD from a marijuana dispensary, they often will allow you to make returns if you don't like something 😀 - Jodi, Myasthenia-Gravis Team Member