Has persisted for 24 hours symptoms include itching of palms and soles of feet bumps in groups on heel of hand none on feet no redness tried Benadryl (diphenhydramine)?

Hives. These symptoms can be caused by hives. See a dermatologist to check if this is the case. They may recommend an oral antihistamine and topical steroids to help.
Possible. Contact dermatitis if you have changed soaps or detergents lately you may have developed an allergic reaction.. Contact dermatologist for diagnosis and treatment.