Abstract: A method of improving drug delivery to treat a condition comprises the steps of administering the drug to a patient suffering the condition and applying cycloid vibration to the region of the body where the drug is to be delivered. The vibration is applied for a period of 30 minutes three times per day until the condition is diminished. The cycloidal vibration comprises small amplitude, 0.1 and 0.5 mm, low frequency, 15 to 75 HZ, vibration producing motion in three different directions. The method is effective in the treatment of cellulitis where the drug administered is an antibiotic.