Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worst Sunburn Ever

Since our son was born, we've been using Coppertone Water Babies sunscreen, but didn't like that it stung if it got into his eyes. When we found this, we were thrilled. I even put it on my hands and rubbed it into my eyes to make sure it was truly "tear free". In that respect, it's great. However, we've used it twice on our son. The first time (last weekend), he got a little bit red, but today, after being in the sun for only two hours, he's got the worst sunburn ever. I'm devastated since I'm very careful about his sun exposure (we're both fair-skinned). In the year and a half of using Water Babies, he NEVER had a sunburn. I also used this sunscreen today and I am sporting the worst burn of my life as well...it looks as though we went without any sunblock at all. I hope someone can learn from our bad experience.