Characteristic lesion in scabies is
Burrows are pathognomic of scabies. It is a serpentine thread like greyish dark line-tunnel in the stratum corneum that host a a parasite. most commonly seen over genitalia of males and areola of females iadvl textbook of dermatology page 459
Burrows
Vesicle
Papule
Pustule
Fungal infections, Scabies, Pediculosis