If it is truly a skin "tag" one can purchase the pressurized nitrogen in cans (at least here in the U.S.) (the preferred brand is Dr. Scholl's) and easily remove the tags/warts yourself at much less cost.
Having said that, if the growth came on suddenly, is crusty, has discoloration and undefined edges, you may wish to have it looked at by a dermatologist for possible skin cancer. I recently had a growth that began at the outside corner of my right eye and seemed to enlarge to about 1/8th inch in diameter and was forming a firm lump. I had it looked at by my family Dr. and he removed it in office, leaving a small scar. He was concerned enough about it to send it in fro examination and turns out it was basil cell carcinoma, probobly one of the least worrisome of cancers, but since he had not defined the perimeter when he removed it he sent me to a dermatologist to do so. Fortunately, the dermatologist found the original Dr. had removed it all. Could have gone to a plastic surgeon but the size of the scar was going to be the same (negligible) regardless so didn't do that, which was fine by my original Dr.
Have you experienced a blistering sunburn in that area sometime in life? I found that to do so increases the chance of cancer by nearly 50%...