Leeches are useful in modern medicine, but probably not for this.....
UTILITY OF LEECH THERAPY
The primary indication for use of leeches in the field of plastic and reconstructive surgery is to prevent venous congestion of flaps used for soft tissue coverage of defects (Beier, Horch, & Kneser, 2010). Leeches have been applied to reconstructive scenarios such as avulsion injuries (i.e., ear, lip, nose, and digit replantation), microvascular free-tissue transfer, and locoregional flap salvage (Herlin et al., 2017). A 2004 study found that 80% of plastic and reconstructive surgeons in the UK had used leech therapy in the past 5 years on compromised free-tissue transfer or replantation operations (Spear, 2016).
https://www.nursingcenter.com/journa...sue_ID=4771656