I have sulfa allergy. I have itching, burning rashes all over my body. Can I take one Claritin (24 hr) in the morning and two Benadryl (diphenhydramine) at night?

Allergic rash. You can take 4 10mg Claritin (loratadine) a day for chronic hives. Be sure it is Claritin (loratadine) plain without decongestant. Avoid Sulfite-containing foods like wine,dried fruits,radishes,potatoes,shrimp.