i have issue bad smell (poop, feces) from my nose...

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What are the causes ?

1.eosphegeal pouch which gathered food particles inside 
2.heamotoma collection from old trauma
3.chronic inflamatory process 
4.chronic siniusities '
5.osteomeatal complex the opening between the sinuses with inflammatin 
6.stuck of foreign body 

What are the investigations?

1.post nasal space x ray
2.high resolution ct scan for temporal bone and sinuses 
3.sputum culture 
4.barium swallow 
5.CBC 

What are the treatments ?

1.surgery for pouch old abcess or heamtoma collection or for forign body removal 
2.antibiotic drugs as penomax or amoxcallin for inflamatory process 
3.use of laculat fresh spray to make fresh good smell