Effects of a Counterirritant on Perceived Pain and Hand Movement in Patients with Arthritis

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Abstract
Thirty patients, using an audiometer, matched perceived pain and decibel levels to measure hand and wrist pain before and after application of a counterirritant. Pain, range of motion, and digital dexterity were measured before and after the application of a placebo cream on one hand and a counterirritant on the other. Applications of both the placebo and counterirritant significantly increased range of motion and digital dexterity; however, application of the counterirritant resulted in significantly greater increase in range of motion (p < .002) and increase in digital dexterity (p < .006) than did application of the placebo. Application of the counterirritant reduced perceived pain; application of the placebo did not.

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