Totally get it - varicose veins going from cosmetic to actually painful is no joke, and yeah, it's way more common than people admit. Prescott's got a few solid vascular spots that specialize in vein stuff specifically, not just general vascular work. Your sister probably saw someone at one of the vein clinics on Summit Ave or over near Willow Creek - those are the main hubs for this. My coworker had the exact same situation, kept putting it off because she thought it was just ugly legs, then one day her calf was so swollen she couldn't walk. Ended up going through a place I found on Google Maps: they did the ultrasound same day, explained all the minimally invasive options, and she was back to normal way faster than expected. Honestly the consultation alone was worth it just to know it wasn't something serious. Check reviews for vein-specific treatments, not just general vascular stuff, since that makes a big difference in how they approach it.