Larissa Stouffer of Melrose, Mass., usually sneezes not once, not twice, but three times. She sneezes as she gets into a car if it's sunny outside, but not when it's cloudy; her dad does the same thing. And as soon as she pops some mint chewing gum into her mouth, out comes an achoo.
Stouffer, 30, isn't the only one with a fickle nose. Many people sneeze at peculiar moments -- such as after exercise, plucking their eyebrows, in the sunshine, or after sex.
Here are the reasons why they sneeze at...
Skin test: A doctor injects a tiny amount of the drug under your skin and watches to see if you have a reaction. Skin tests only work for some types of drugs, like penicillin and other antibiotics, muscle relaxants, and some cancer drugs.
Patch test: A doctor puts a small amount of a drug on your skin. After 2 to 4 days, the doctor will check for a reaction. This test can check for delayed allergic reactions to antibiotics, anticonvulsants, and other drugs.
Blood test: Lab tests may help diagnose some allergies to antibiotics and other drugs.
Talk with your doctor to see which is best for you.