thanks for your question...
As there is h/o abuse of some substances and also history seems that it could be a nasal polyposis or fungal rhinosinusitis.
Consult any ENT specialist
and under go CT paranasal sinuses
as well as Diagnostic nasal endoscopy (DNE) to rule out any mass and if possible allow biopsy if mass is present.
Meanwhile take topical steroidal nasal spray
nasal spray two times a day.