Low-frequency (2 Hz) transcutaneous electrical nerve stimulation (TNS) may produce prolonged and widespread sympatho-inhibition resulting in improved skin microcirculation with increased skin temperature in patients with peripheral vascular insufficiency. The method has previously been used successfully to improve peripheral circulation in such patients and to accelerate healing of chronic skin ulcers of various etiology. The present report deals with healing of atopic eczema and relief of pruritus by low-frequency TNS treatment in a patient who was followed for 2 years, the first 8 months with daily recordings of the effects, and then for an additional 16 months during which period TNS only occasionally was used. TNS also produced increased plasma levels of ACTH, cortisol and vasoactive intestinal polypeptides (VIP). The mechanisms of the favourable clinical effects are discussed.
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