Individuals who have experienced a bug bite should check for symptoms such as hives or a rash; burning, numbness or pain; and red or purple spots developed on the skin, according to WebMD. Muscle spasms or muscle stiffness and difficulty breathing are also symptoms that should be evaluated.
Wheezing is a symptom that should cause concern following a bug bite as well as blisters, painful sores and discoloration of the site of the sting or bite, explains WebMD. Individuals who develop flu-like symptoms such as nausea, vomiting or diarrhea immediately following the bug bite should consult with a medical professional.
Some patients experience pain that can spread from the site of the bug or spider bite into the chest, back or abdomen, according to the Mayo Clinic. Severe abdominal cramping may also occur following a bite or sting. Some individuals experience excessive sweating near the bite or sting or within the entire limb affected.
Patients with extreme symptoms such as abdominal cramping, severe pain or a growing ulcer near the site of the bite or sting should consult with a medical professional immediately. Bug bite reactions vary based on the type of insect or spider that has bitten the individual.