That strange, itchy, bumpy rash on your body during pregnancy might be a PUPPP rash (pruritic urticarial papules and plaques of pregnancy). Your OB or dermatologist can confirm a diagnosis for you. The good news is that PUPPP rash is benign to you and your baby, and usually resolves after pregnancy. Most people won't experience PUPPP rash during subsequent pregnancies.
In the meantime, here are few tips to manage the itch.
Bath in colloidal oatmeal to alleviate the itch.
Wear breathable loose cotton, silk or rayon clothing. Avoid wool, polyester and non breathable fabrics that may cause you to over heat or sweat.
Apply aloe vera gel to cool and sooth the areas. Be sure it is alcohol free.
Apply cold compresses.
Try a soothing ointment such as Emily Skin Soothers for Hot Skin.
Avoid applying products which contain mineral oil, petroleum, alcohol or parabens.
Avoid applying essential oils directly on the skin.
Try a few acupuncture sessions. Schedule with a licensed acupuncturist who works with pregnant people and who is Nationally Board Certified.