Hi @Abbydog
I do have lymphoedema and my therapist was keen for me to wear a compression sleeve on any flight. In essence, I have discovered that swelling on one day can take a week or more of active exercise, compression etc to get rid of, so not worth it. You do not automatically get lymphoedema after a mastectomy and may not after axillary clearance either but it should be noted that if you have had a reasonable amount of lymph nodes removed, lymphoedema may occur up to 15 years after surgery! So the sleeve may have been proposed just in case. It’s worth checking if you actually have lymphoedema. If not, then an off the shelf compression sleeve might be worth having for longer flights or if any swelling appears. A qualified lymphoedema therapist can advise and can recommend garments. Off the shelf is cheaper and can be subsidised but depending on your diagnosis, custom made may be more effective. It can all be very manageable as long as you know what you have, and what to look out for. Best wishes.