Hi @bvh176, welcome to Mayo Clinic Connect, an online community where people can share experiences and ask each other questions about any health issue. We can't give professional medical advice.

The full range of symptoms that COVID-19 can cause is still being discovered as more and more is learned about this virus. I found this article for example that mentions skin rashes as an emerging symptom:
- Skin Rashes: An Emerging Symptom of COVID-19 https://consultqd.clevelandclinic.org/skin-rashes-an-emerging-symptom-of-covid-19/

According to this information sheet, the most common cause of hives all over the body is viral infections.
https://www.seattlechildrens.org/conditions/a-z/hives/
I'm tagging @sueinmn @potterylady @nilshamilton @amart22018 who have had COVID or family members with the virus. They may have some experiences to share and hives or about steroids.

Bvh, how old is your daughter? Are you caring for her at home?