👉 The term "infection" in the context of guitar refers to the phenomenon where a guitarist's fingers, particularly those on the frets, become overly sensitive and can cause pain or discomfort when pressing strings down too hard or for extended periods. This condition, often exacerbated by improper technique or playing styles, can lead to conditions like finger pain, calluses, or even nerve damage. Guitarists combat this through techniques such as using a guitar with a softer neck, adjusting their playing position, and employing lighter touch when strumming or picking. Some also use specialized tools like gel pads or finger oils to reduce friction and protect their fingers. Understanding and managing "infection" is crucial for maintaining long-term comfort and performance on the instrument.