Small cluster of itchy spots have delveloped on my forehead just below the hairline on my right side of my face. 3 Raised larger bumps below the cluster, and one larger red bump on my chin . Also itchy eyelid over my right eye. My roomate seems to be suffering now for a month from some sort of rash like poision oak, his face swelled up till his eyes were shut. He saw a doctor who gave him predizone. Is what he has contageous? I have been spending a lot of time in the sun. Could it be heat rash. I also live near a lake, and woods, lots of bugs, spiders, flies and mosquitoes. Could be any number of these, or a combination of these I guess.