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Dr. Andrew Rynne
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What are the symptoms of a spider bite infection?

how do I know if a spider bite is serious? My husband s elbow is red, swollen and extremely painful to the touch. I see a small white area (looks like a white head) then a surronding red, swollen area about 2 inches in diameter. it is so painful, he cannot straighten his arm or apply ice.
Mon, 5 Mar 2018
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Internal Medicine Specialist 's  Response

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Dear the bite area becomes erythematous and ecchymotic and may be pruritic. Generalized pruritus may also be present. A central bleb forms at the bite site, often surrounded by an irregular ecchymotic area (bull’s eye lesion). The lesion may mimic pyoderma gangrenosum. The central bleb becomes larger, fills with blood, ruptures, and leaves an ulcer. A black eschar forms over the ulcer and eventually sloughs.

Most bites leave minimal residual scarring but some can leave a large tissue defect, which may involve muscle.

Symptoms are in severe cases fever, chills, nausea, vomiting, arthralgias, myalgias, generalized rash, seizures, hypotension, disseminated intravascular coagulation, thrombocytopenia, hemolysis, renal failure etc..

other insect bites also may be similar to spyder bite .

Use anti histamines and anti NSAIDS they are useful to control edema.

if symptoms not improved please consult your physician he will examine and treat you accordingly.

Take care.
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