In simple linear regression a single independent variable is used to predict the value of a dependent variable. In multiple linear regression two or more independent variables are used to predict the value of a dependent variable. The difference between the two is the number of independent variables.
Watching for Systemic Symptoms. 1  1. Watch from swollen glands. Serious cases of cellulitis will spread beyond the initially infected region to become systemic and impact the rest of the body. 2  2. Notice if you experience fever and/or chills.
Symptoms of cellulitis may include fever, pain, swelling, tenderness, and redness. In some cases, blisters may form on top of the affected skin. It is important to seek prompt medical attention for all rashes to receive effective treatment and avoid complications.