While i was on the phone with one of my friends i notice that i had a sharp itch on my upper left thigh. I scratched it thinking it was just a regular mosquito bite and went on with my day, later the itch became more persistent and unpleasant. For 3 days straight i scratch it until it became blood red. Then i left it alone for a day and it became purple, now its a bright red and i dont understand how it still itching. And i havent gone out in a couple weeks so i factor out spiders and other typical animals. Do you have any suggestions?