I have a 4 years daughter but she is hairy like some hairs appeared on face, hand and leg. Can we do some like natural treatment or any other options is there to get rid of it???

No, as they grow it becomes normal. The baby is too small to try any treatment.

Please don't do anything and most importantly do not make her feel shy or bad about it. This is all natural and let her decide what she wants to do when she understands things after 18 yrs.