Valacyclovir is used to treat infections caused by certain types of viruses. In children, it is used to treat cold sores around the mouth (caused by herpes simplex) and chickenpox (caused by varicella zoster). In adults, it is used to treat shingles (caused by herpes zoster) and cold sores around the mouth.
Gastroenterology (MeSH heading)[1] is the branch of medicine focused on the digestive system and its disorders.
Digestive System Procedures/specialists. Gastroenterologist â a physician specializing in diseases of the digestive system including esophagus, stomach and intestines. These specialists do not do surgery. Patients needing surgery are referred to a general surgeon. Proctologist â a physician specializing in diseases of the rectum and anus. Proctology is a surgical subspecialty. Guaiac test (Hemoccult, Fecult) â a special chemical test to identify blood in the stool (feces). Blood in the stool may have many causes including cancer and hemorrhoids.