Ah, constipation with a sore area is quite uncomfortable for the little one, I understand your worry. I'd suggest checking with the doctor first before applying any cream, just to make sure it's not something that needs proper medical attention, sometimes when kids hold their poo, the area can get quite raw and irritated. In the meantime, you can try encouraging more water and fruits to help soften the stool, and maybe a warm bath to help relax dia sikit. Do get it checked soon, ya, just to be safe.