Suggest Treatment For Fluid In Middle Ear

I have been to Dr as I have a cold. I was given otrivin and clarinase to take. In addition I have been steaming with olbas oil twice a day. I have taken Clarinase for 7 days. Two days ago I went to the DR he said there is still fluid in my middle ear. I am a flight attendant and need to get the fliud out as I cannot equalise pressure in my ears on descent. Any advice on how to get rid of the fluid besides the steaming? Is it safe to carry on taking the clarinase as my nose is no longer blocked