Instruct: Classify the given review into positive or negative sentiment.
Query: Chemical Burn

We were nervous that Pampers changed their diapers and read some terrible reviews...so we switched to Huggies hoping to avoid the burns that people were talking about and the first diaper from this box that we put on my son left the most horrible looking burn on the inside of his thighs that is so painful to him he can't walk right. Today it is still red and swollen and scabbed over. Horrible horrible experience.