Hello All, I have donated blood day before yesterday, and ever since then I have a red spot which looks like a rash about an inch above the point the needle pricked (it looks like a blood clot). One of my friend s who was there told me that blood squirted out when the technician punctured my arm. My concern is even though the pain has subsided the red rash continues to grow in size and colour and there are a couple of more smaller rashes next to it. I am worried, should I get it checked.