The vast majority of insect bites do not require medical attention. It is common to have some localized redness and swelling immediately after a bite. However, if the bite site begins to appear infected, redness, swelling, severe pain or any fluid draining from the area, you should seek medical attention, as the infection may require antibiotic treatment. If the bug bite causes the individual any facial swelling, shortness of breath or trouble breathing, seek medical attention immediately.