Lower arm skin "weakness" is typically related to thinned skin from chronic sun damage. Also, if you are on blood-thinners such as aspirin, you are also more prone to have bruising here. I doubt microdermabrasion will be of much benefit. Retinol or retin-A based creams are a great starting point...
If you want to improve the quality of your skin, I would tell you to get some good skin care routine recommended by a skin expert, your dermatologist. Microdermabrasion really isn't going to do that for you. Hope this helps!
Silkpeels are treatments that gently exfoliate skin while simultaneously infusing solutions chosen for your skin type and skin issues. This treatment will have no effect on your RA regardless of the infusions selected. "This answer has been solicited without seeing this patient and
cannot be...