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As hot as we look in a pair of 4-inch stiletto pumps, there's no denying the pain we feel after walking for a couple of hours in those babies. And no matter what new technology Dr. Scholl's comes up with, scrunched toes, aching arches and hurting heels still ensue. However, collagen fillers will get your sore tootsies high-heel-ready in no time.

While the procedure isn't a new one, doctors have noticed the high demand for these quick but not necessarily painless shots in the past year. For those of you who are willing to shell out the $400 per session, the procedure involves a protein injection into the balls of your feet and lasts about two to three months.

"When they put on their shoe, the transformation is immediate and they feel more comfortable and more able to dance or mingle the night away," said Liz Dale, director of the Harley Medical Group told the Daily Mail. "The injections are integral padding and last just the right amount of time for party season. Though there's nothing to stop women having top-ups to keep the comfort going."

And as Jimmy Choo, Manolo Blahnik and Christian Louboutin (who last year launched the 8-inch stiletto) become more and more popular, it looks like these injections may end up being hotter than boob jobs, Botox or butt implants.

Tell us: Would you inject collagen into your feet so you could wear high heels longer? What are your high-heel-wearing tips and tricks?