Statistical analysis
pain
The SPSS program (IBM SPSS Statistics, Version 20.0, Armonk, NY: IBM Corp.), the statistical analysis was carried out. “Shapiro Wilks test” was used to evaluate the normality of the data distribution of the study variables. Nonparametric tests were used to determine differences in significance between the comparison groups. Intergroup comparison for the study evaluated variables (burning sensation, pain, lesion score, symptomatic response of burning sensation, symptomatic response of pain, clinical response) and the age difference between the three groups was performed using the “Kruskal-Wallis test”. Intergroup comparison for nominal categorical variables (gender and site) were performed using “chi square test”. Using the “Friedman test” at various time points, an intragroup comparison was made for the research variables that were analyzed. For all comparisons, P 0.05 was considered statistically significant.