New face mask

I recently just tried a new face mask, it’s a rejuvenating cucumber and pink salt face mask. I’m only suppose to leave it on for 7-10 mins, and it leaves my skin nice and smooth. But while I’m wearing it my face tends to get really itchy, not tingly or anything but itchy. Is this normal? Or can it be a sign that I’m allergic to the product? Help appreciated please! 😬