Ok, well I m 14... And my mom noticed a yellowish wet looking scab on the back of her head, and she told me it hurts her neck and it hurts her really bad. And I m worried... So could you please tell me what this could be? And should she see a doctor or something? Also, she had the bite or something on her arm and she picked at it, she put a bandaid on it and she thinks she s allergic to the band aids, because everytime she puts a new brand on or anything more bites/bumps come up on her arm. Is she allergic to them? Or something more serious?