Ok im a tech for Acura so heres what i suggest.

1. Find you a snapon or matco guy, they may even sell them at normal auto parts stores but i dont know. Find one and buy a coolant funnel. Drain the coolant. Put the plug back in. Attach the funnel to the radiator and pour in coolant till the funnel is full. Start the car, let it run for say 10 minutes. With the car running, plug the funnel (comes with the plug) and remove it and replace radiator cap. Use remaining coolant to fill the resivoir. This is how I replace coolant on all services and NO air pockets. Technically its burping the system.

2. Drive the car see what happens.

3. If it persists replace the thermo with OEM honda part if you havent already. Id go ahead and replace the radiator cap as well while you there.

4. If you still have problems your gonna get deeper into diagnosis and being your far away I cant tell you where to go from there, bc theres two different directions you can go. But if you do have skill or even aptitude to fix your car, pick up a service manual...A REAL ONE, and follow its trouble shooting procedures. This is your best bet. Bc asking online you will never get ONE solid answer from anyone.