See dr. Bites may
cause no sx's/signs except for 2 small points where skin was punctured. When there's a reaction, it may show from an hour to several days after bite. It can cause itchy, pink, swollen, lesions w clear center. In cases of hypersensitivity
blisters may develop. A telltale sign is linear track of lesions from sequential feedings – but doesn't always occur.