Hello,
Tiny little bumps that are itchy is usually cholinergic
urticaria, that happens due to change in skin local temperature.
Dry skin can cause you to scratch and itch, and urticaria can appear again.
The best thing is to keep calamine lotion handy that helps with the itch, or a
levocetirizine 5mg tablet as and when required.
You will require a tablet for your seasonal allergies at which point youwill notice less of the itch
skin rash.
Best Wishes.