I have never taken Hydrea, but have had four small basal cell carcinoma skin cancers removed already! I am blonde blue eyed and spent time outside as a kid riding horses and swimming all summer long as we were off back then. I did wear a visor, but had the skin cancers on my shoulder, neck, tummy, and even one behind my ear. All were on my left side. I have worn sunscreen, a hat, and sunglasses since being adult but think I got all the exposure as a kid. I also have always lived in Southern CA.