Miriam,
Try Aveeno oatmeal, found with the bath section stuff. It's soothing and does help the itch after soaking in it.
It a package of what looks like edible oatmeal that you dissolve in warm bath water. If it gets worse - Medrol pack from your doc.
I'm allergic too and both kids. We used to get it from our golden retriever when she would go over the hill and then come home and swish that big tail on our legs. Took us a while to figure out how we were getting it and hadn't been in the weeds!!
Hope ya dry up soon!