I had a no-lateral mastectomy 4 years ago. Breast cancer in 1 breast and 3 lymnodes. All nodes on 1 side removed. I get myofascial massages on scars and arm area. It has really seemed to help. I do have a sleeve and if I feel any swelling I put it on. I think with everything else we seem to worry. Hopefully if you get a sleeve and be aware of over use of arm you won’t have problems