Is there hope for my grandma?

I'm normally happy and cheerful but my friend/grandma has developed a new strange addiction.

She had an infection inside of her vulva which killed a lot of tissue in there and the doctors recommended maggot therapy to fix this. This treatment has given her orgasms and she has gone beyond what is necessary to cure her infection. She has been picking up dead animals off of the street near where she lives so that she can be sexually stimulated by maggots.

My doctor and friend says he finds this very disturbing since the maggots could gradually eat away her entire body. She is already starting to have a lot of trouble walking.

Lets all pray for her, whatever your religious background is. I'd like to have her put into rehab for this, it is totally like a drug. What my grandma is going through is very sad and scary.