Skin Allergies and Hives

Hi mummies, anyone facing changes in skin? I’m only 5 weeks in and facing problems - hives and skin rashes. I have a history of allergies but after confirmed pregnancy my rash has been more predominant and reoccurs often. Ongoing for 3 weeks now and I’m constantly having to take antihistamines and body lotion to soothe itching. Not sure if the changes of hormones is a factor.