Hello, my name is Nina. I am very concerned about a lump on my right shoulder. It has been there for a good 5 years but recently it has been a bit painful on my shoulder. Its a little tan in the middle with red around it. It has not changed in any way shape or form. I do see something else around the area. It looks like another small blister. If you rub your finger over the spot you can feel a small lump under there. It hasn't bleed. It doesn't itch. I was worried that it may be skin cancer. When I was 16 I had really bad sun poisoning on my shoulders. I can not remember if this spot was there afterwards or if it just showed up. I do have a visit to my dermatologist on September 3rd. I am very scared and wanted an opinion at least till then. I do have a pinched nerve from my spine to under my armpit. I have pain on this site along with neck and shoulder pain. Please give me some type of advise. Thank you so much.