http://vanicream.com/products/vani_sunscreen.cfm
I swear by Vanicream... I do not sell it although I sure wish I did! lol My daughter who is very fair skinned and also allergic to all kinds of things has no problems with this one- no allergic reaction and NO sunburn!
She has a rare disease called Mastocytosis. Other parents of children with this in our support group told me about it in the lotion and how to make a special med for our kids skin with it. Then I seen that Vanicream also has a sunscreen! I have tried tons of them and this is the only one my daughter has not had a reaction to. If you go to the site it will show you that it is free of the common skin irritants and it is also PABA Free!
I buy the sunscreen online- just cuz I did it last minute before a trip. But you may be able to get it at your local pharmacy also. I get the regular Vanicream lotion there behind the pharmacy counter.
Another thing that you may want to consider for the pool is a swimsuit with sunscreen built in. They may be called rash guards?!?! It is a lightweight swimsuit that has long sleeves and longer shorts. I think they are adorable on the boys- they look like little surfers! I just got my daughter a version of it at Kmart for cheap but not as much skin coverage as I would like. I believe Lands End also has them but are a bit on the pricier side!
Good luck and many blessings to you to have a fun and safe summer!