Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concern..
As per your complain the symptoms of pressure behind the eyes, runny nose and
post nasal drip seems to be due to Upper
Respiratory Tract Infection that has also caused mild
Sinus infection or Sinusitis..
You can take anti allergics like Allegra as it will relieve the symptoms..
Along with iy you can also take antiinflammatory painkiller like Ibuprofen,oral decongestant like Pseudoephadrine,take decongestant nasal sprays like
Xylometazoline, do saline
nasal irrigation, steam inhalation and use a humidifier in your room..
You should sip on plenty of warm water and take other warm fluids..
You should avoid spicy and chilled foods..
Take appropriate rest..
In case of no improvement consult an Otolaryngologist and get evaluated and he can advise you an x ray of sinuses and advise antibiotics along with other medications as advised above..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.