I have had itchy bumps on my outer elbows for several years. They come and go, usually lasting up to a week before disappearing for a while. I don't really know what is causing them. This time I also got some on my knees. But I don't have rash anywhere else. The bumps are small and there are quite a lot of them. My skin is not red or scaly. The bumps are the same colour as my skin normally is. Clear liquid comes out from the bumps when they break.