I enveloped an itch 2 nights ago I felt like I got eaten by Mosquitos.in my upper tour so, chest arms, they appear to look like round flat round bits. As I itched and rubbed they became large deform shape in clusters.after applying cortisone cream did nothing.,I took 2 benidrill pills after1 hr feel asleep. Itching subsided I felt throbbing beneath the skin. It's been 3 days it goes away in the daytime and comes back in the evenings only. What can I do? And what does it sound like?