Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain discharge of yellowish fluid from the nose that has a bad smell and taste seems to be due to
sinus infection secondary to extraction as due to close proximity of
sinuses some amount of infection might have got into the sinuses or there is a possibility that there is slipping if any root piece into the sinus leading to infection and accumulation of infectious fluid..
As sinuses drain through nose the discharge is coming from the nose..
Consult an Otolaryngologist and get evaluated and a PNS View x-ray or
MRI of sinuses can help in diagnosis and treatment can be planned accordingly..
In case if there is infection antibiotics, painkillers, steam inhalations, saline nasal sprays, decongestant nasal sprays can help in relief..
In case if there is no improvement or there is presence of any root piece into the sinus surgical removal or
drainage of the thick infected mucous or pus has to be done..
Hope this information helps..
Thanks and regards.
Dr. Honey Nandwani Arora.