I went to camp kudzu it's a diabetic camp and come back home after a week . I look at my arm the next day and there's a little patch of tiny itchy bumps. As the hours and day passed they have spread up my arm. They have got so ichy I find myself clawing at my arm in the middle of the night , only on my left arm they haven't spread to any one else or any other part of my body , my mom don't want to take me to the doctor , does any one no what this is?