Anyone have a reaction to baby milk powder?

[Reenypip]

My hands are extremely itchy, since I've been using baby formula powder. I'm certain it's that causing it because I had am exactly the same with my first child and a couple of weeks when he stopped having it, it went.
And now I've started using it with my second child, it's started again.

Anyone else get this?

How are you washing and sterilizing bottles?

In warm tap water with a bit of washing up liquid, and then in a tommee tippee microwave steriliser.

Could it be the washing up liquid and continuous hand/implement washing? Both me and DP got terrible contact dermatitis during the bottle months......