As nasty as it looks it doesnt hurt one bit.
From a medical standpoint, 'not hurting' isn't necessarily a good thing.
Pain is important, and when something looks like it should be painful but isn't, it suggests that nerve endings are being desensitized or destroyed.
For example, one of the hallmarks of leprosy, another mycobacterial disease, is chronic nerve damage and loss of sensation in the extremities.