Cellulitis is a bacterial infection of the deep layers of skin. A break in the skin, such as a cut or scratch, can let bacteria under the skin. It may also occur from an infected oil gland (pimple) or hair follicle. If the bacteria get into deep layers of the skin, it can be serious. Cellulitis on the face is especially dangerous if it affects the skin around the eyes.
It causes the affected skin to become red, swollen, warm, and sore. The reddened areas have a visible border. You may have a fever, chills, and pain.
Cellulitis is treated with antibiotics taken for 5 days. The medicine is most often given by mouth, but infection around the eye may be treated with I.V. (in the vein) antibiotics to prevent spread into the eye socket. Symptoms should get better 1 to 2 days after treatment is started. Make sure to take all the antibiotics until they are gone. Keep taking the medicine even if your symptoms go away.
If not treated, cellulitis can get into the bloodstream and lymph nodes. The infection can then spread all over the body. This causes serious illness.