Mama, please check with your OB first bago ka mag-take ng anything, they know your pregnancy best at ano ang safe for you and baby!
Eczema during pregnancy is really common, kaya hindi ka nag-iisa dito. Your doctor can recommend options na safe specifically for you, or suggest other ways to manage the itching (like gentle moisturizing!). You're doing great by being careful about what you take, that's exactly what a thoughtful mama does. Rooting for you!