For example, some people will barely notice a mosquito or ant bite while others break out in itchy or painful welts. If someone has an allergy, an insect bite or sting can mean a severe reaction ...

Bee stings are not just a painful inconvenience; they are the result of a highly evolved biological defense mechanism. When a bee stings, it injects venom, which contains a complex mixture of proteins ...

flea bites may trigger allergic reactions or even transmit diseases like typhus or the plague. If symptoms worsen, lab tests can identify specific pathogens from the bite site or a blood sample. Bed ...

Hives, also known as urticaria, are raised, itchy welts on your skin that occur due to an allergen. The reaction is ...

It took doctors a long time, however, to figure out the unlikely cause: alpha-gal syndrome, also known as red meat allergy, which Wallace probably got from lone star tick bites in her backyard in ...