3 months post-op. What else can I do to reduce swelling and tighten skin and puffy nipples? (photos)

I can feel a little mass under my right nipple, which pains specially in cold nights. My doctor told me to use compressive shirts (see photo) for one year to stick the skin to the body. Also, he recommend me to workout (done). Do you know another recommendation to stick the skin to the body? Some way to get rid off scar tissue quickly? Thank you all!!