I'm 20 years old and I've had blood blisters on my waist, most likely from clothing friction, but now it's so much more widespread and it looks like a big rash. The only types of clothing that don't irritate the 'rash' are dresses, but it's getting cold out, and blood keeps getting all over my clothes from these blisters. My clothes fit just fine, but my skin doesn't think so. Is this a condition (like dermatitis)? What should I do to prevent more blisters from developing? I've already tried lotions, and anti-bacterial soap. Should I see a dermatologist?