I stayed in a hotel from last sunday night through friday morning. On Monday afternoon, my hands started itching and burned like they were too dry. On Tuesday I had a few red spots on my body but they were small. On Wednesday when I woke up, every small red spot that I had the day before were swollen. Throughout the day the red swelled spots started turning a dark purple color and i realized that my blood was surfacing to the top of the bumps. Any idea of what this could be? I searched the bed sheets and didn t see any bugs. Today will be 7 days since I first stayed in the hotel and i now have several spots on my arms and a large one on the side of my neck.