Difficult to say with out an ENT examination.
You might be having either Ear wax or Eutsschian tubes blockage.
Since you have enough time before travel pls get an ENT examination.
Meanwhile use Dewax ead drops, 5 drops, 4 times a day for a week along with Nasoclear nasal drops 2 drops 4 times a day till u travel.
Answered2019-01-03 10:04:41
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