I used any old thing for years. But the last 2 summers and our last Disney trip I started getting hives in the sun. Large red welts all over my chest and arms.
They don't itch.. they're just ugly. I don't know if it's sunscreen or the sun itself. I suspect the sun actually becuase they get smaller and almost go away after a few hours indoors.. but it's hard to say because they also have occurred on days that I use sunscreen. I don't bother with it if I am out running errands or something, but for a day doing yardwork or in the Disney Parks I do.
So.. all that to say I bought L'oreal Ombrelle yesterday. Not cheap by any means.. but it is hypo allergenic and dye and fragrance free. We'll see if it helps.
ETA) I just realized something as I hit send. I never get them on my face. And I don't put sunscreen on my face! I have a very gentle moisturizer that is SPF 25 that I use for my face. I'll bet it is the sunscreen I was using afterall!