This is a minimally invasive procedure carrying real risks, and your director goes through them with you before you agree to anything. Bruising, swelling and tenderness along the treated arm are expected in the first days, together with patches of numbness that take time to fade. Less frequently, patients develop surface irregularity, a seroma, firm nodules under the skin, skin laxity, infection at the micro-entry point, prolonged altered sensation, or visible asymmetry between the two arms.
An arm brings its own considerations. It is a mobile limb, so the treated tissue is being moved and stretched constantly while it settles; it hangs at your side, so fluid tends to travel downward when the arm stays low; and both sides are on show at once, which makes asymmetry more noticeable here than on the trunk. Tell the clinic your full medical history, all medication and supplements, any breast or lymph node surgery, and any previous reaction to anaesthetic.
Afterwards, wear the sleeve as instructed, keep each micro-entry point clean and dry, and contact the clinic promptly if pain, redness, discharge or swelling grows after the first few days. A resident medical director is on site during opening hours, so a doctor can always look at the arm.