Almost all insect bites or stings leave welts, if they have the horsepower to break the skin. If it's not a chemical blend they inject to make feeding easier, their saliva can also cause a localised allergic reaction. The bite should be expected to increase for a few hours, and then decrease in size and effect in 1-2 days, although some stay longer. Unless the bite expands, changes color, or you experience rashes or shortness of breath (allergic effects), you're pretty safe. However, any allergic reactions -- and especially difficulty in breathing -- mean it's time to call for help.
The nature of the way venom enters a body makes a circular swelling, welt or redness a very common symptom of everything from a chigger bite, Spider bites to a bee sting and Tick bite.
usually a spider
The bite of an insect that leaves two punctures about a half inch apart could be from a spider. It is best to seek professional medical assistance if there is a concern about an insect bite because some bites could be deadly.
The bite of some poisonous insects leaves a necrotic crater. This is an impression in the skin where the cells are dying.
While it is not an insect, a spider can leave a 3 point bite mark. If the mark is accompanied by any symptoms, contact a physician.
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yes i bite insect but when we bite dragonfly can we make superhero