@parus Cellulitis is an infection of the skin. Bacteria gets into even a small pinprick of skin. It can be life threatening. I have no idea how I got it. My former roommate had it in his butt cheek! Mine is in my right leg calf. It became excruciating very quickly. My leg looked like something out of a horror movie. It’s better now. I hope to God I never have this again!