it’s special effects, i follow the instagram account that made it :)
Wet gangrene. Gangrene is referred to as "wet" if there's a bacterial infection in the affected tissue. Swelling, blistering and a wetappearance are common features of wet gangrene. It may develop after a severe burn, frostbite or injury. It often occurs in people with diabetes who unknowingly injure a toe or foot.