pH The rise in pH increases the activity of fecal proteases and lipases, which can damage skin C albicans is found on the skin in 40% of infants with active diaper dermatitis within 72 hours of the appearance of the rash Because studies show that this organism is present in less than 10% of infants without diaper dermatitis, it may be playing a significant role Sources of C albicans include the GI tract and secondary implantation from a mother with candidal vaginitis FIGURE 69.12 Distribution of atopic eczema at various ages