After 3 wks of Orthotics, have small itchy bumps in both arches, that are now painful

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Was prescribed over-the-counter Orthotics and after three or four weeks of wearing them, I experienced very itchy bumps in the arch area of each foot. Those bumps are now very painful.

(1) does anyone know what this is called, and also
(2) should I make the Orthotics out for now, until my next visit with the podiatrist?