Symptoms usually appear three to four days after infection and can last for several weeks. Consult a doctor if you experience: itching, especially at night; bite-like rashes in suggestive areas of the body, particularly between the fingers, on the hands, armpits, breasts, buttocks, genitals, and abdomen. In younger children and babies, it can affect other areas such as the head, palms of the hands, and soles of the feet.