The phrase "to relieve the irritation" means to make something less annoying or bothersome.
Sentences with «to relieve the irritation»
«Sometimes that helps relieve the irritation in the throat when the mucus is thick,» Dr. Liberatore says. (health.com)
The World Health Organization (WHO) lists honey as a demulcent, which is a substance that relieves irritation in your mouth or throat by forming a protective film.5 (articles.mercola.com)
Your cat will use licking to relieve the irritation of flea bites. (felinefriendlycare.com)