Dettol soap is really bad for skin. It damages your skin and causes skin problems.
Whenever you go to a doctor he will say stop using dettol as it has chemicals and also it is acidic in nature. it can prevent from diseases but causes much damage to skin.
I shall say that do not use dettol on childs skin, because their skin is very softand easily damageable. Stop using dettol and use some other soap which is not acidic.