Hello, I have an itchy rash. Small red welts that look like mosquito bites and then turn into little red bumps, there also seem to be a couple of white/grey lines around my wrist. It is quite spread out over my body - wrists, legs, torso, nipples. It comes and goes in intense waves. I haven t eaten anything different or used any new soap. I have had it for about 3 weeks - it changes areas of my body. It started on my foot, then went away and my wrists started itching etc. Any ideas?