hello i have noticed some red spot appearing on my chest , they are small max 1 cm but mostly smaller. at the same time there are 1 or 2 of them. but they always disappear after few hours. they are not raised or anynthing they are just reddis spots. And yesterday on my right side of chest appeared several those patches on cca 5 cm place. They was very small max 0,5 cm each but they covered like 5 cm of my chest if you understand me. and then after 1 or 2 hour disappeared again. Do you know what can it be pls ?