I have pollen allergy, on my skin began to appear purple linear changes?
I’m a 16 years old girl. I am a healthy, the only thing I have is pollen allergy since I was 6 years old. More than two weeks ago, on my skin spontaneously began to appear purple linear changes like petechiae. It started from the forearms, about 2 cm and than started to spread. Later it came out on upper arms, neck, left lower leg and right thigh. I had these changes on the buccal mucosa. Before changes occur I feel burning sensation and strong pain in veins. I had a mild swelling of the joints of arms and legs. Veins are more pronounced during the pain and changes. All blood tests are good. CRP, PT and PTT test are good. A lot of analysis has been done, but I still do not know what it is. They suspected vasculitis but it is not confirmed.
I hope so that you can help me.
Best regards and thank you.