Water baby sunscreen there, I'm allergic to?

baby and water two days ago, tb from sunscreen spray, spray, spf50 about the latest type of cylinder, bought last night and my arm today, look at the allergy spray ray was previously, a physical sunscreen, i have no problems, the arm was the opal to use sunscreen and mild, a little whitewashed? low coefficient of this portion of the remaining children are allergic to when i actually use? water in the baby's allergies can be safe???