Are Decongestants Or Antihistamines Better For Clearing Plugged Ears?

Yes. According to the Mayo Clinic:

Options for clearing plugged ears include:

1. Oral decongestants
2. Nasal spray antihistamines
3. Topical nasal steroids

Just like the question linked above, I got a cold weeks ago, fought it off and ended up with a plugged ear, making me effectively deaf on my right side.

Option #4.