Fleas typically attack dogs and cats, but humans ... may occur. Flea bites sometimes cause papular urticaria, a chronic (long-lasting) inflammatory disease that presents as a rash with small ...

Results from a bite by a flea. Itching, skin around each bite may become sore or painful, hives or develop a rash near the site of a bite. Usually self-diagnosed. Sore or lesion on the skin is ...

Go to the emergency room immediately if you experience any of the following symptoms after a bug bite or sting: A red, donut-shaped rash that develops after a tick bite. This could be a sign of Lyme ...