The tropical climate is hot and humid throughout the year. The ambient temperature is usually >25 °C and humidity >70 % throughout the year. There is very little seasonal variation. Patch testing in the tropics becomes a challenge to dermatologists because the application of occlusive patch test allergens with sticky tapes can cause discomfort to the patient, and adhesive tapes used for holding the test chambers in place often get displaced because of sweating. In this chapter, pitfalls and tips on patch testing in the tropics are presented.
KeywordsContact Dermatitis Patch Test Allergic Contact Dermatitis High Ambient Temperature Gentian Violet