About 6 weeks ago, I ended up having to have a large-ish glass shard removed from my hand, in day surgery. A couple of weeks ago periodic aches and stings started getting worse, along with thickening under the skin in a wide region around the smaller stitched & healed wound. I've just found out (wasn't originally told), that scar tissue massage needs to be done, frequently, to help break up the thickening and de-sensitise the area. Anyone with experience of this? Tips?