Got my hair dyed Monday which is an every 3 week routine for me, this time I changed the color but it was the same kind of color, was applied my scalp felt scalding and was extremely painful. It went away once she washed off the dye. Next morning I woke up to sores in my head which were painful, I tried not to touch. Then this morning I woke up and the lymph nodes in my neck are very tender And swollen, I'm really scared and freaked out!!!! Why does all the weird stuff happen? Should I panic???