HTH

HTH is an acronym, or abbreviation used in Internet slang, that means "Hope This Helps" or "Hope That Helps" or "Happy To Help."
HTH is also an abbreviation for High Tech High.
HTH is also an abbreviation for hand-to-hand, which means being at close quarters, in a close combat. The expression first appeared somewhere in the beginning of the 15th century. It is explained in the article mêlée.
HTH® is also a brand name that sells pool maintenance chemicals such as granular calcium hypochlorite, used to chlorine shock a swimming pool.
HTH an acronym for High Tail Hall, a yiff site made with Macromedia Flash by Pendragon Entertainment.