Sometimes rash can be a symptom of your pregnancy. I would share that with your healthcare provider. If it is poison Ivey an old Indian remedy is fern tea. If you live by woods or have access to any fern leaves clip some and boil them in water making a tea. Then use a washcloth to apply to the rash or strain out the leaves themselves and pat them over your rash. Works for poison oak and poison sumac too.
See a dermatologist... I had that and he perscribed me with a cream that's not sold over the counter.. I don't remember name tho
Honey actually stops the itch! I swear by it. My son just had poison ivy on his legs and arms. It worked great for him bc he couldn't stop scratching! Hope this helps :-)
Vinegar worked for me. I stunk like vinegar, but just keep applying it with a cotton ball. It will go away. I wasn't going to spend $100 for a tube of cream.
Baking soda and water paste. Even an Oatmeal bath may help. Good luck
My hubby is a landscaper and gets it often. We use warm apple cider vinegar on a washcloth and it helps with the itch and drying it out quickly. Hope you feel better.