Start decongestive therapy by therapist who is certified in lymphedema therapy as soon as possible. There is no cure, only management, but results are better the earlier you seek treatment. I wear a compression sleeve and glove. Not thrilled about this, but I order “fancy” printed colorful ones. I am developing edema in my chest and I have an appointment with therapist next week-will most likely need a compression vest. My therapist has taught me lymphatic massage and “dry brushing”-this may help you

@leolion811
Check with your oncologist for referral to Physical Therapist with knowledge of lymphedma. They can work on the lymph veins as well as recommend "swell spots" which help with lymph drainage to get relief. Below is a youtube video of a "chip bag," but I use a "swell spot" and the shape was prescribed by my PT that reaches from the side rib cage, under the armpit, and over throughout the breast. I place that under my compression bra and wear it throughout the day for several days to up to a week or two. It also helps to break up the fibrotic area from radiation. https://www.youtube.com/watch?v=hqqCLy8wJbk