hello, My baby has this patch on the neck fold. It started 2 months ago when she was 5 months old, with a pinkish moist patch and now it is dry but increased in size. Now size is not getting increases as it was restricted to her fold with mirror image. with the first impression our Pediatrician suggested that it is a rash due to milk but as I can see this patch is not going, I visited multiple skin specialists and everyone was giving different conclusions like Inver Psorisis/Sebatic Dermititis/Intertrigo and also Vitiligo. please suggest.