Symptom 2: Some may have erythema, erythema, papules and wheal, local skin is red, swollen and itchy, and large purple spots on the needle point can be seen in the center of the injury, which are bite marks, and some may appear on the red and swollen surface.
Symptom 3: The rash mostly occurs in the waist, abdomen, calves and other places, and it is arranged in a linear or lumpy way. Children's damage symptoms are often more obvious, manifested as papular urticaria, and itching is unbearable, because of common scratches, blood scabs or secondary infections.
After understanding the symptoms of flea bites, everyone should try to avoid places where fleas often appear, such as forests.