I feel a burning sensation in my tongue even when I am eating, is that something dangerous?

My childs nose bleeds many time, mainly in hot weather so what can i do or is there a treatment?

Can I use probiotic drops for a baby suffering from gases??

One year and a half kid, her tongue became black for two days then return normal then it return black then normal and so on, the doctors don’t know how to diagnose that, so please if any saw similar case tell me

Is it normal to have a yellowish dicharge like mucus from the umbilicus? if not what is the treatment?