From my own experience, could be several causes (sometimes they exist even simultaneously):
A. could be triggered by a food allergy - observe especially if your nasal mucous membrane becomes dry after ingesting certain foods. Possible foods triggering this:
- diary
- certain additives or extracts in food
- some pesticides or preservatives (even a treated tea)
- even maybe some food triggering cross allergy with some organic dust you are allready respiratory-allergic too
B. Could be a delayed respiratory answer to an allergen in a building air conditioning system.
C. Could be continuous exposure to:
- a detergent in bedclothes
- some actual dust in your house (especially some remained from re-building a place)
- maybe even continuous exposure to some scented oil that triggered you finally this reaction
For the classical dust, maybe try even an organic product for killing dust mites (I saw one that is put in vacuum cleaner). For bigger dust (from construction) you have to vaccum several times, it will disappear gradually.
- recently whitewashed walls
D. If it's not an allergy, I don't know the answer, but maybe it's possible that some staph in your nose produce this or it even could be some side effect of some drug, this I don't know, check with your health care provider for those.
For relief with your nasal mucous membranes, try washing the nose with sea water and lubricate it with vitamine A in oil form. Hope I was able to help.
clean it
Clean your house, Use disinfectant. I clean my house after The Critter Guy removes the skunks in my attic to get rid of that stinky smell.
dont deep fry your foods, clean your house, use an odour eliminator, air out the house.
poop
Bad electrical fixtures.
Mothballs could create some of the odor.
Acetone.
Meth has a neutral smell. so there shouldn't be a bad smell left behind. Cleaning a bad smell out of the house is in no way the agency's responsibility. If the seller wants to sell the house, they will clean it coz i wouldn't buy a house that smelt really bad.
A fresh smell in a house usually comes from keeping it clean and well-ventilated. This can create the impression of cleanliness because it suggests that the house is regularly maintained and cared for. A pleasant smell can also make people feel more comfortable and at ease in the space.
It depends how frequently you clean your cavy cage if you dont it will smell like Guinea pig! Hoped I helped $)
An example of diffusion is when the smell of the food in the house or in the kitchen go on the air and start smelling all over the house. this means that the particles of the food diffused and mixed with the particle of the air.which causes the smell of the food all over the house or the kitchen
Bacterial growth causes your navel to smell.