Thank you for the information,
In sinus infection, there would usually be pain in the face, forehead areas, nasal congestion, discharge.
As you are not having any such symptom, it is likely to be due to dryness of the room.
High blood pressure can cause nasal bleeding.
As your blood pressure is low, this possibility is not there.
You can keep the room humidified.
You can use saline nasal drops to keep the mucus membrane of nose moistened
If you develop pain, headache or if the cough increases, I would suggest to take an examination by doctor.
In case of bleeding, please gently squeeze the soft part of nose for about 5-10 minutes while you can breath through mouth.
Ice wrapped with a piece of cloth can be kept over the hard part of the nose.
I hope this information helps.
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