It is like petroleum jelly except is water-soluble so it will was away without wiping. Several doctors advise using it after laser surgery also. Second Skin burn pads. These products draw the heat away from the skin into a moist gel pad, which does not stick to the skin. It can be used after laser to draw the heat away.
Bathing is a concern for ulcerated hemangioma.
Sea Salt Baths seem to soothe the child while normal water baths can cause pain. Salt-water baths should be very dilute, like contact saline without the preservatives. Sea Salt can be purchased at health food stores read the directions for dilution. Air drying the area where possible is best, never wipe with a towel to dry. Squirt bottles filled with water or saline solution instead of wipes or wet cloths to clean the area is best.