HI,
I do not know where you live etc, but there are places that may have used supplies like compression sleeves for your arm that you can wear to help with the swelling. (most times you need a compression sleeve that fits your arm.) Also check with therapists that deal with BC lymp-edma and they can help you massage your arm properly. There are certain ways that you need to massage your arm etc. that help move the fluid up in your arm.
I do not know enough about state insurance or plans but you need to keep bugging them until they will pay for what you need. Did the massage therapist they sent you not suggest a compression sleeve and a wrist sleeve as well, get back in touch with her.
This is what I was taught.
1. Take your right arm and lightly touch your left arm in an upward motion, start at the wrist to the elbow then elbow up to shoulder, it is more like you are brushing or dusting something off of your arm but you are not doing this deeply as all of the cells are just below your skin.
I then continue up around my shoulder, along my back and around my throat. Sorry, I have not done the massaging for a while, most times I just do may arm and it gets things moving.
I would also get back with your oncologist or even BC support groups because there is always someone out there who can refer you to someone for help.
Good luck''
Love to all
Mary