what does Cellulitis look like on my dad's leg

Cellulitis,

Cellulitis is an infection of the deep subcutaneous tissue of the skin. Cellulitis can be caused by normal skin flora or by exogenous bacteria, and often occurs where the skin has previously been broken: cracks in the skin, cuts, blisters, burns, insect bites, surgical wounds, or sites of intravenous catheter insertion. Skin on the face or lower legs is most commonly affected by this infection, though cellulitis can occur on any part of the body. The mainstay of therapy remains treatment with appropriate antibiotics.

Erysipelas is the term used for a more superficial infection of the dermis and upper subcutaneous layer that presents clinically with a well defined edge. Erysipelas and cellulitis often coexist, so it is often difficult to make a distinction between the two.

Cellulitis is unrelated to cellulite, a cosmetic condition featuring dimpling of the skin.

(from WIkipidia)

but his main problems is not the leg.... but the pain he gets all over his body.
after 3days of X-rays (about 19 shoot) the doctors still cannot really tell us what is the problem. if they don't even know what they are dealing with, how are they going to fix it. I ask myself, WHAT CAN I DO NOW..........