Here is the pattern I see repeatedly in my clinic. A patient develops plantar fasciitis. They rest, ice, stretch, maybe take anti-inflammatories. The pain subsides over several weeks. They return to their normal routine. Within months — sometimes weeks — the pain is back, often worse than before.
This is what I call the Plantar Fasciitis Recurrence Cycle, and it is almost entirely driven by one unresolved factor: the feet continue to be loaded without adequate support.
What perpetuates this cycle is the footwear most people wear every day. The stock insoles in the average shoe — whether it's a sneaker, a work boot, or a casual flat — provide almost no meaningful arch support. They are thin foam inserts designed to fill space and provide the appearance of cushioning. They are not designed to properly support and distribute the mechanical load across your foot.