Ventilation-perfusion (V/Q) scan is a specialized test that uses a radioactive substance to show the parts of the lungs that are getting oxygen (ventilation scan) and getting blood flow (perfusion scan) to see if there are portions of the lungs with differences between ventilation and perfusion.
Moleskin may be the first commercial blister treatment and prevention product I remember using. My dad always kept some moleskin in his pack and at the first complaint of any hot or sore feet, out it would come.
White toothpaste for friction blisters. 1  Put a small amount of toothpaste on a clean finger. Do not use colored toothpaste or whitening gel. 2  Smear it on the area with the blister and leave it to rest for about 2 hours. 3  Do this 1 to 2 times daily until the blister is gone.