What could i use this to move the itching and burning after giving birth?

Sitz baths: Hormonal and local immune-mediated changes can sometimes present like this. Of course, one should remain vigilant for contact related matters. Supportive measures (e.g. Sitz baths: take a shallow pan, fill it with some warm water, add a touch of Epsom salt to the water; then soak the perineum/affected area in it for about 5 minutes daily), routine contact and moisture precautions should be used.