Noise-cancelling headphones are battery-powered headphones that actively cancel out the ambient noise surrounding a listener. The most common use for them is during plane journeys. While sound-isolating earphones will block out chatter, it won't get rid of the noise of a jet engine. Noise-cancelling headphones will. Put simply, they work by using tiny microphones that listen to the noise surrounding the listener.
detected esophageal lichen planus in 12 out of 24 patients diagnosed with orocutaneous lichen planus. One-third of these patients showed symptoms such as dysphagia and odynophagia. 2 Esophageal involvement is more frequent in patients with oral lichen planus than in anogenital or cutaneous manifestation.
there is as yet no cure for esophageal lichen planus. It is an autoimmune skin and mucousal disease and for most people the cause is unknown. Prednisone helps temporarily, in easing /the symptoms, but as soon as you stop taking it, the disease comes back with a vegence.