Took prednisone for a sinus infection now my entire face has broken out in acne. i finished the dose when will the acne go away?

Most likely: Steroids can certainly be a contributing factor to the development of acne. Now that you have completed the course of therapy, the acne should resolve. Eat a healthy diet, wash your face with mild soap to help keep it clean--do not scrub hard. If the acne persists, see your physician. He mat want to prescribe an acne cream to help resolve the problem.