Bruising after Rejuran treatment is actually relatively uncommon. Usually, you do not get severe bruising most of the time after the treatment. Bruising should recover within a day or two.
In in the event where bruising does happen, there are a couple of things I would suggest. Firstly, I would suggest potentially using topical treatment, including products that contain a topical alpha-hydroxy acid or retinol-based product. It actually helps with thickening skin and stimulating neocollagenesis.
Another option you can consider is using led light therapy. In particular, this light therapy can help to reduce the appearance of bruising and reduce the healing time.
Cold compression is the other way. Last but not least, I often suggest to my patients that they should refrain from having alcohol. Alcohol consumption can prolong the healing time and make bruising worse.
Thank you!