Thank you for asking your query at DoctorSpring.
The feeling of congestion at the ear seems to be related to the previous episode of nose trauma although we cannot totally rule out a cold / seasonal flu.
The good news is that there is no reason for any concern as of now. The mechanism of congested feeling of the ear is same in both flue and trauma. There will be congestion and inflammation of Eustachian tube which maintains the air equilibrium inside the middle canal during trauma / cold causing slight dysfunction. Normally it will resolve by itself.
You can do a steam inhalation twice a day for faster relief of symptoms. Get medical help if the symptoms worsens and/or if there are new Ear or Nose symptoms.
Hope this helps
Please feel free to ask followup questions.