Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
It looks like you have a
sinus infection along with your seasonal allergies leading to the symptoms of
post nasal drip, headache, cough and bad taste.
I would suggest you to consult an Otolaryngologist and get evaluated and a thorough clinical evaluation
and investigations like PNS view x ray or MRI scan can help in diagnosis and treatment can be done
accordingly..
You can be advised a course of antibiotics, anti-inflammatory painkiller like Ibuprofen, decongestants
like Pseudoephadrine, do saline
nasal irrigation, steam inhalation and use a humidifier in your room..
You can also be advised decongestant nasal sprays containing
Xylometazoline or
Oxymetazoline..
Avoid spicy and chilled foods..
Do warm compresses around nostrils..
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Honey Arora