She told me it was to protect me from chemical burn. I thought that was sufficient. However, she didn't apply any on my scalp. So at some point, I started to feel a burning sensation and I ...

Your scalp’s reaction to hair products offers clues about irritation, sensitivity, and what works for your skin type.

Frequent exposure to ammonia-based dyes can disrupt the scalp’s natural balance ... swelling, and even chemical burns in severe cases. Prolonged exposure to hair dye on the skin can result ...