This usual and SynchroWave is the answer. It only affects the muscles and the layers of fat between the muscle and the skin so no shockwaves penetrate deep into the body. The therapist will recommend two sessions a week and by the fourth week, often sooner, you will see much improvement. The CellSonic gel during the treatment contains aloe vera as a skin tightening agent and the CellSonic creams to use as often as you want on your tummy also contain the skin tightener.
Some women are more affected than others. The factors are the size of your bulge before the birth and the elasticity of your skin. Use a moisturizer which can also reduce any itching.