CRP and Erythema: According to logistic regression analysis, an increased risk of CAM was observed in patients with increased CRP levels [Odds Ratio (OR) 1.082, 95%CI: 1.008–1.162, p = 0.029] whereas a reduced risk was observed in patients presenting with swelling, erythema, and tenderness of the retroauricular area (OR 0.173, 95%CI: 0.031–0.976, p = 0.047).