Can there be an oral treatment for internal hemorrhoids?

Sure: To reduce the swelling of internal hemorrhoids, you can take fiber therapy or stool softeners to keep your stool soft. Both are over the counter (colace, benefiber, etc) hemorrhoids are aggravated by straining and hard stools. External disease or symptoms such as burning, itching can be treated with witch hazel locally and sitz baths with epsom salts.