My 2.5 yo is getting a rash all of the sudden (light, blotchy, tiny red bumps), and we think it's from his sunscreen. We've been using this same bottle for 2 years without any problems. It could very well be expired, but I assumed expired sunscreen would only be less potent, not that it would cause a rash. Anyone been through this? Should I buy new and see what happens? In any case, do they make "natural" sunscreens? Any suggestions?