Necrosis More Condition_treatment How Does Skin Necrosis From A Spider Bite Takes Place? Will It Happen From The Inside Of The Skin Out?

How does skin necrosis from a spider bite takes place? Will it happen from the inside of the skin out? - necrosis more condition_treatment

Remarked about 4 or five days, I have a big, red beans in the right thigh, hot on frlt and has grown steadily since. After a little fever, which always begins in the afternoon until midnight. 2 days ago I went to the restaurant, but not much about her and prescribed a broad-spectrum antibiotics and ibuprofen. Today, in the early evening, I was too hot to touch, even with a fever, headache, rash on both legs and the area near the center of the swelling begins to very red, especially in darker skin. This is, as the necrosis of the skin starts from the inside? Response appreciated.