An air embolus results when air gets into your bloodstream from the pressure of the douche. It is rare, but it can cause very serious problems for you. As your uterus has grown and filled your pelvis, your abdominal skin and muscles have stretched. Itchiness is a fairly natural consequence. Many women complain their abdomen itches with stretched skin.
Lotions are OK to use to help reduce itching.
Your abdominal muscles are also being stretched and pushed apart as your baby grows. Muscles are attached to the lower portion of your ribs and run vertically down to your pelvis. They may separate in the midline. You will notice the separation most often when you are lying down and you raise your head, tightening abdominal muscles. It will look like there is a bulge in the middle of your abdomen.