Aww, I'd definitely get that checked with your pedia soon, mommy, white patches can be a lot of things, from pityriasis alba (super common sa kids, especially kapag dry skin) to other skin conditions na kailangan ng proper diagnosis. One of my mum friends' toddler had something similar and turned out it was just dry skin, but better safe than sorry kasi ang bata, so best to let the doctor see it in person at prescribe kung ano talaga ang kailangan.