Hi doc - the ones I have are actually seemingly mor permanent and they are are called cherry something or others- they start out as tiny dots and they can grow larger. They are said to be totally benign. I have thought that they may be my bodies way of detoxing something that my liver has had a hard time with or something like that. Of course I don't really know - as I clean up my body and get my liver in a healthier state I am hoping that I may not get any more.
Maybe the original questioner was referring to what you are decsribing though.