 [ Symptoms ] i get headaches runnystuffy nose sore throat and cough a lot when im at my house but not when i stay somewhere else  what could be wrong with my house [ Disease ] it has many causes but mostly your sinus infection or poor oral hygiene is causing it try starting salt water nasal lavage and keep taking antibiotic till it clears up and for at least 5 days drink plenty of water if you are already taking other medications please specify as some times it is caused by other medications also