Procedure to Reduce Philtrum?

Definitely photos are always beneficial to help a surgeon decide what would be the best solution for a particular problem and to reach the desires of the patient. You can reduce the size of the philtrum by excising certain portions of the lip to change the appearance. These excisions can occur inside the mouth and can hide quite well. Sometimes, making incisions under your nose can also help change the shape of the lips to get what you want.
There are also many different lip advancements that can be done to alter the shape of the lips. Injections can be helpful but would really depend what the desired outcome was. I'm sure if you brought your picture in that a facil plastic surgeon would be able to figure out what was best!

A photo is worth a thousand words.  It is highly unusual for someone to ask for a philtrum reduction.  I am wondering if something else in the perioral region is bothering you?

Greetings,
I would agree with Dr. Katz that a photo would be beneficial. When evaluating an area for surgical intervention, it is important to appreciate the relationship of one area to another. For instance, what you describe may best be treated by enlarging the lips or creating more red show to reduce the appearance of the philtral columns. Without a photograph or evaluation, it is difficult to even suggest a procedure.