Hi.. Welcome to HEALTHCARE MAGIC.. I have gone through your query and can understand your concerns.. As per your complain flushing feeling on face along with head pressure and squeezing between the eyes seems to be most probably due to Sinus inflammation leading to sinusitis.. But for confirmation of the cause you need to get proper evaluation and investigations done as such symptoms can be seen in other conditions like severe stress, hypertension etc.. But as you already have history of sinusitis it seems to be most probable cause.. 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.. Take sufficient rest and avoid stress.. Hope this information helps.. Thanks and regards. Dr.Honey Nandwani Arora.