Stretch marks, technically called straie, are a form of scarring caused by tears in a layer of the skin called the dermis. Stretch marks are often caused when skin stretches quickly, as during pregnancy, growth spurts and periods of rapid weight gain. The resulting marks are usually pink, red, or purple at first and then fade with time to a silvery white. There is no known cure for stretch marks, which often cause itching.

Fill a bathtub with water, enough to come into contact with the stretch marks. Adjust water temperature to be as cool as you can tolerate. Add the contents of one packet of colloidal oatmeal, such as Aveeno, to the bathwater. Soak in the tub for 15 to 30 minutes, exposing stretch marks to the water. Gently pat skin to dry and avoid rubbing.

Apply a liberal amount of a natural, non-irritating lotion, such as Eucerin or Aquaphor, to the skin, concentrating on areas where stretch marks appear. Avoid scratching the skin. When dressing, avoid wearing synthetic fabric next to itchy skin.

Apply an ice pack to the area of stretch marks for a few minutes if itching persists. This may have a soothing, numbing effect on the itching. Cooling the affected areas helps to reduce related inflammation. Avoid scratching or rubbing the skin.