Not sure if the picture showed up. But I have been breaking out in an itchy rash since my son was born. Has been on thighs, arms and back of neck. I get swelling in my knees and elbows too. Swelling never really goes down and an antihistamine only helps moderately. Really don't want to have a biopsy done so I was wondering if any ever experienced such or knows what is the cause.

Link to pic https://i.imgur.com/pZHuznf.jpg