They will stay <span style = 'background-color: #dae8f4'>for</span>
varying lengths of time and then dry up and go away. Usually not <span style = 'background-color: #dae8f4'>for</span>
more than a couple of weeks. I may go for
months and months and not get them and then all of a sudden they show up. I have been to various dermatologists over the years and they seem puzzled and never seem to know what they are.