Differential vasodilatory responses to local heating in facial, glabrous and hairy skin

Local heating induces biphasic cutaneous vasodilation in non‐glabrous skin of the forearm. However, little data exist in other skin regions, despite the prevalence of facial flushing disorders. We hypothesized that facial skin will have greater initial peak responses to local heating than forearm skin because of neural differences between sites and, furthermore, axon reflex vasodilation will be eliminated in facial sites with sensory blockade.

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