1 Gently rub a pumice stone back and forth across the affected area for three to five minutes and then pat dry your feet. 2  Dip a cotton ball in castor oil and place it on the corn. Secure it with tape and leave it on overnight.  The next morning, remove the bandage and apply castor oil several times a day.
1. I am confused regarding the presence of valves in the superior vena cava. The superior vena cava does not possess valves unlike inferior vena cava, which possesses Eustachian Valve.
Superior vena cava syndrome (SVCS) is a collection of symptoms that usually occur in patients who have lung cancer, non-Hodgkin lymphoma, or other cancers. It also can occur from noncancer causes. Although serious when it occurs in adults, this syndrome is life-threatening in children.