myself and my daughter get this, it could still be a problem for a few reasons:
you may need to get your boiler checked, my daughter was getting it really bad and I did everything, eventually got the levels in the water checked and have since had a new boiler put in, turns out some pipe or other was clogged with Sugar and it was coming out in the water, you should get your boiler checked every 6/12 months as this problem is quite common, failing that we also use Oilatum Junior, it comes as a liquid to soften the water, and also a cream to use instead of soap, After suffering with this problem for 10 years with nothing working, Oilatum did the trick and we now use it regularly, Also non-bio detergent, and biological powders will irritate your skin. Hope this help you!. x