Conditions: Healthy
Keywords: Healthy volunteers
Allocation: RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 40
Healthy volunteers: yes

Brief summary:
The purpose of this research is to study how people respond differently to capsaicin in different racial groups and the effect it has on your pain levels. Capsaicin is a natural product made from hot chili peppers that is useful for treating the itch symptoms of skin disease.

Detailed description:
To comprehensively evaluate the ethnic differences in response to topical capsaicin and its effect on thermal sensory thresholds.

Arms:
arm 1: Capsaicin 0.1% cream application to the volar side of forearm. arm 2: Placebo moisturizing cream with no active ingredient (Cetaphil; Galderma Laboratories LP, Fort Worth, TX, U.S.A.) to the opposite forearm.

Interventions: intervention 1: Capsaicin intervention 2: Placebo moisturizing cream
Intervention descriptions: intervention 1: Topical application, 0.1%, Capzasin HP; Chattem Inc., Chattanooga, TN, U.S.A intervention 2: Placebo moisturizing cream with no active ingredient (Cetaphil; Galderma Laboratories LP, Fort Worth, TX, U.S.A.)

Protocol document: