Didn't realize it was gout for a couple weeks.

I have Plantir faciatis and wear custom orthotics. They are as stiff as metal. I started having pain in the arch of my left foot a couple weeks ago and it steadily progressed to where I could barely walk. I went to chiropractor thinking it was the Plantir faciatis and once he started examining me, he thought it was a stress fracture. Long story short I have just found out there is no fracture and the redness on top of my foot has him thinking its gout, which ive had in my big toe and knee before. Everytime ive taken Colchicine it has worked pretty quickly. This time it hasn't. Is it because it went un medicated for so long, and if so, how long should I prepare for the Colchicine to start working?