my 21 month old baby is getting this kind of rash on both her thighs. I have attached a picture please help what should I apply

A. Get a check with your paediatrician ones because in the first place you need to understand what is the reason behind these rashes Aaj for the help can only be provided on that basis which is why I would advise you to get a check with a paediatrician ASAP and they will be able to give you a correct assistance for the problem that is happening