formed due to trauma to the skin due to scratching. They should go away in a few days. But if they persist then please consult a physician and get other causes ruled out which include allergic reaction
, autoimmune diseases, thrombocytopenia, ITP or leukemias.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your doctor. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.