Scar tissue and redness 4 months post op. Can I do anything to speed up my recovery?

I had surgery roughly 3.5 months ago. I had both lipo and gland removal. My concern is that as the scar tissue starts to build up the nipple is beginning to show through a tshirt again the way it did prior to surgery. My PS did give me a steroid shot about 4 weeks ago, but so far I have not seen much impact. My other (possibly biggest) concern is redness directly under the incision. Is there anything I can do on my end to help speed the recovery up? The redness is making the nipple appear bigger