Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that along with
sinus infection you might also be having lingering symptoms of flu leading to chest congestion and cold feeling or there can also be associated
lung infection..
I would suggest you to consult an Otolaryngologist or Pulmonologist and get evaluated and he can also advise you blood tests and chest x ray to rule ut the cause for the symptoms..
You can be advised a long course of antibiotics, anti-inflammatory painkillers like
Ibuprofen, decongestants like
Phenylephrine, anti allergics like levocetrizine..
You can also be advised to do steam inhalations and use a humidifier in your room..
You can do saline nasal irrigations and continue using steroid inhalers..
void spicy and chilled foods and drink plenty of warm water..
Take a
soft diet and do sufficient rest..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.