My fifteen year old daughter has rash on her neck inside her hairline. What might I put on it to stop the itching & clear it up? She says it started when after she & her girlfriend dyed her hair a month or two ago. She says the dye burned her in a couple

It . It definitely sounds like an allergic reaction to the dye or possibly even a burn from the chemicals in the dye. Try over the counter Hydrocortisone cream to the area four times a day for about a week. If there is no improvement she should be seen by her primary care doctor or a dermatologist. Best of luck.