As you can see, I'm no stranger to dental work. Every dentist I've seen has told me I take excellent care of my teeth, but that my sinuses run close to the roots. The last implant I had was due to an abcess that required the tooth to be pulled. I complained about pain in that tooth for over a year, but was told nobody saw the abcess until it grew bigger.

The pain I'm having now is in the tooth behind the implant (not the root canal one). Persistent throbbing that doesn't change when eating food or drinking hot/cold liquids. It will go away for a day or so and inevitably reappear. My dentist said he sees a little bit of something at the root, and wants me to take antibiotics. I have severe allergies, which they have on file and I verbally disclosed with him again during the appointment. I cannot take a Z-Pack, but he prescribed one to me anyway, even though I clearly told him it's off limits. The pharmacist refused to fill it. Pharmacist requested Bactrim (which they know I'm not allergic to), but the dentist refused to prescribe it. He settled on Clindamycin, but I'd need an oral solution due to difficulty swallowing large pills. The pharmacist is also hesitant about filling that due to potential allergic reactions, too. Dentist is closed for the weekend, so I'll have to wait to call back.

I go back in for a follow-up x-ray in January. Any advice on this? Should I be blindly following his course of action when I'm having persistent tooth pain that doesn't go away?