My Daughter Is 20month Currently On Soya An Dairy Free

My daughter is 20month currently on soya an dairy free diet as of yesterday dairy free since 11month she had bloods done yesterday for
Full blood count
Celiac screening
Liver function
Kidney function
Inflammation of intestine
Inflammation bowel
Few months ago my partner noticed lump on her bum hole between vagina an bum but more on bum wot can it be she doesn't have solid nappies all loose with mucus sum times blood reason for bloods being done yesterday worried about the lump now tho