Any over-the-counter stuff to relieve the itch from hives?

Antihistamnine pills. Oral antihistamine such as zyrtec, allegra, even Claritin can be good first line choices for hives. When it is bad, u can add a Benadryl (diphenhydramine) at night. Topical medicines r usually not as effective.
Yes! Things to put on your skin: Hydrocortisone cream 1% and pramosine gel (like Benadryl (diphenhydramine) clear or sarna). Soothing baths: aveeno or oatmeal. Antihistamine pills: generic chlortrimeton or benadryl, (diphenhydramine) non-sleepy loratadine/generic claritin. Good luck!