Allergies can be triggered by a variety of things, including indoor and outdoor irritants, as well as foods. If you notice allergy symptoms in your child, make an appointment for them with a pediatrician or an allergist, a doctor specializing in allergies.

If you don't feel well, you may worry that you have COVID-19. The only way to know for sure is to take a test. At-home tests can tell whether you have the virus right now. More specialized antibody tests can show if you've had it already. You have ...

Microbiome tests measure the microorganisms in a person’s gastrointestinal (GI) tract. These tests can give the person an idea of the types and amounts of microorganisms in their gut. However, people who experience digestive issues should consult a doctor.

You can't place orders for at-home COVID testing kits anymore, but there are still resources available for free testing. Peter is a writer and editor for the CNET How-To team. He has been covering technology, software, finance, sports and video games since ...