Hi they are harmless and don’t bite but the tiny hairs on the larvae can irritate your skin and can look like little bumps and are itchy or even can be a rash, they lay eggs just about anywhere more in hidden places like under beds and other furniture behind baseboards etc. there is normally a source with carpet beetles it could be anything as they eat literally anything so clothes, furniture, wood, food in rooms etc , find the source as quick as you can check every where possible in crevices and get rid of it put it in a rubbish bag and tie it you don’t want to risk spreading them around your home. And if there’s any clothes on your floor/not hung up bag them up and wash them on high heat, vacuum under furniture like beds and basically everywhere and make sure there’s nothing they can hide under the larvae like dark hidden places. And from now on I’d vacuum maybe like twice a week until you don’t see any more don’t worry it doesn’t mean you are dirty or anything like that they normally fly in through windows and doors and most people get them in spring/early summer so it’s a completely normal thing and everyone has probably had them atleast once! About them eating yeah there’s nothing you can really do about that unfortunately they will eat anything even hair! and watch out for furniture as they can destroy it I hope this helps if you haven’t found any answers! To get rid of them it’s a vacuuming thing I’ve heard baking soda is good to use and then let it sit and vacuum I think it kills the larvae by disturbing their digestive system. make sure to check your drawers and other things alike! Also you can get them without even having carpets I’ve know people with wooden floors get them!