I am a 28 year old female weighing 159 lbs at 5'7". I've been taking norco 10/325 as prescribed for about a year for a bad back injury. Recently my dr. Increased my dosage to 3 a day and I broke out in a full body rash with severe itcching. After using anti itch cream allover and treating it with sensitivity soap and detergents it went away everywhere except for my inner thighs and vagina. I have large bumps down there and it still itches really bad. How do I treat this and do you think it's from the medication increase? It never happened when I was only taking 2 a day. Please help! I'm miserable!