Is it just a case of slathering on sunblock? Dd is 3 months and I carry her in a moby (have just ordered a hana baba in the hope of being cooler!) Her legs always end up sticking out and obviously her head does too. She has a hat on and factor 50 on her legs/feet but I'm still paranoid...is this enough? I'm obviously not going for long hikes with no shade but I'm worried about even short walks in this sun.