Mean SD number of MGYLS was not statistically significantly different between groups at baseline ( combination treatment , 3.5 1.5 ; warm compresses , 4.2 1.4 , P > 0.5 ) , and was significantly greater with combination treatment versus warm compresses after 3 months of treatment ( 9.3 2.7 vs. 4.7 2.3 ; P = 0.006 ) .