What causes red bumps on back and inner thigh?
Patient: My almost 3 year old son has red bumps almost like a rash beginning on his lower back to butt and inner thighs. They are in clusters and also by themselves. In the last few days they have spread. He also says they hurt. I know it is not diaper rash but not sure what it is Doctor: Hi, it may be lichen urticatus..also called popular urticaria. It is considered as hypersensitive reaction to insects.Kindly consult the dermatologist. I would suggest Antihistaminics, steroids in tappering dose, mild steroid cream..etc. And avoid contacts with insects...okThanks.Dr.Ilyas Patel MD