Nasal congestion, clear nasal discharge with an occasional facial pressure are likely in the first few days due to the effect of the virus
on the mucosal lining of the nose ad sinuses. Sudafed
is helpful initially (in the first few days) because of its effect on the nasal anatomy. In generalm it has a drying effect and it can help to shrink the mucosal swelling down to a certain degree which can provide relief from both obstruction of the drainage tracts of the sinuses into the nose and the nasal congestion as well as providing some dryness for a runny nose
. However, swelling o the tissues especially in the relatively narrow straights connecting between the sinuses and the nose causes a lack of drainage. Think of a pond that has no influx of water and no outflow to drain to - growth of algea and harmful bacteria
is almost assured. The sinuses are hollow cavities in the face that have a lining that secretes mucous. The sinuses are covered with bacteria normally but when the outflow tracts of the sinuses become clogged, there is bacterial overgrowth and an infection ensues. This causes the yellow green nasal discharge that you are experiencing. The build up of pressure inside the sinuses causs the increased pressure in the head (specifically around the forehead, cheeks, or behind the eyes). The flow of infected mucous past the back of the nose affects the connection between the ears and the nose, a channel called the eustachian tube. Inflammation of the eustachian tube can lead to difficulty equalizing the pressure between the middle ear and the nose which can lead to pressure or pain sensation in the ear, popping, crackling in the ears which will only resolve with treatment and resolution of the nose and sinus infection.
At this point, i recommend an appointment with an ear nose and throat doctor who can examine you, get more information and treat the likely infection with antibiotics, steroid nasal spray
(which does no affect the rest of the body - only a local effect) and some mucinex