Bites and Stings: Flu-Like Symptoms

Some insect and spider bites or stings can cause flu-like symptoms to develop within hours of a bite or sting. Or symptoms may be delayed up to 3 weeks. Flu-like symptoms include: Fever. Shaking chills. Muscle or joint aches. Headache. Swollen glands. A vague feeling of illness (malaise). Flu-like symptoms may not be...