Hi, I noticed that I got some type of bite on Saturday eve, this is the 2nd time that this has happened with the same results, Not only is it red, swollen, itchy, & hot but there is a streak running up my arm. I would really like to know what insect this is coming from for me to have such bad reaction. Not sure that you can answer that but I have been to the Dr/ ER and the lady there did a culture and treated it as MRSA, which camr back negative..