I recently switched houses and noticed that whenever i take shower, there are small red blotches on my legs. Upon research i understood that these are hives. This is the first time i got this and not sure how to deal with it. Hives disappear after a day or two if i don't take shower. Its not itchy, just red blotches that feel sensitive upon touch. Kindly suggest how to deal with this. It's been a month. Thanks in advance.