Shannon B said:
Hi Red, I was first diagnosed at the start of September 2010 with sharp shabbing pain into every tooth in my upper and lower jaw on my left had side, the pain started at night first with multiple short attacks during the night then progressed to during the day after a few nights and then I was having them all the time. My pain seems to be triggered by cold wind or breathing in cold air, I found relief with hot water bottle and no standard pain medication helped. I started Epelim 5 days after my first attack and didnt get any relief until I was 1000mg of Epelim. I have seen a neurologist and had a MRI which showed no compressions MS or tumours. He has changed me to Lyrica and I have just finished the change over and already had to increase my Lyrica intake to 50mg instead of 25mg.
At first I did think that it was another Bells palsy attack because I had some pain behind my ear which is what I would normally get with BP, I also had a cold sore the size of a small planet on my non TN side (right) 2 weeks before coming down with TN, the doctors put me straight on a Anti viral because it was the first one I had and it was extreme. The Neurologist is throwing around the idea that my Bells Palsy and TN are linked and that the cold sore virus (herpes simplex 1) which is the same trigger for bells palsy is having some effect on my nerve.
I think that pretty much covers it.
Thanks
I must apologize for not getting back to you sooner, Shannon. I had a multitude of "stuff" come up that I had to take care of, some of it family related. Then I managed to misplace the link to this posting. Some weeks a person can't win for losing.
A couple of thoughts surface for me in reading your narrative above. First, your presenting symptoms seem consistent with many reports of Trigeminal Neuralgia. The absence of an obvious nerve compression in MRI images does not eliminate TN as a candidate source in your facial pain.
Next, your prescription of Epilim (Topimirate, or Sodium Valproate?) tends to confirm that your doctor is indeed treating you off-label for some form of facial neuropathic pain. But 1000 mg per day is more than double the recommended maximum daily dose for seizure control. So I am still a little puzzled as to whether that's the drug you're actually on. See
http://www.rxlist.com/topamax-drug.htm
Your doctor seems also to be treating you conservatively with the prescription of Lyrica. This med is often prescribed for fibromyealgia, though it is used often enough with a wide variety of facial neuropathic pain also. RXList.com has the following to say about medication dose for this med:
"The maximum recommended dose of LYRICA is 100 mg three times a day (300 mg/day) in patients with creatinine clearance of at least 60 mL/min. Begin dosing at 50 mg three times a day (150 mg/day). The dose may be increased to 300 mg/day within 1 week based on efficacy and tolerability. Because LYRICA is eliminated primarily by renal excretion, adjust the dose in patients with reduced renal function."
As for Bells Palsy and TN being linked... that one is a tough nut to crack. Has Herpes Simplex I been confirmed by lab cultures? Likewise, have you ever had Chicken Pox? Shingles, which is caused by the Chicken Pox latent virus in the nervous system, and also treated with the same anti-viral your doctor used, can cause post herpetic neuralgia, that has strongly overlapping symptoms similar to those of TN. For whatever this is worth, Neurontin is frequently effective in reducing pain caused by PHN (regardless of present controversy concerning Phyzer falsifying data in a drug trial directed to neuropathic pain).
If you want to read up on Bells, the following site looks like a good place to start:
http://www.bellspalsy.ws/cause.htm
In a rather general sense, I can see a rough sort of logic behind your doctor's speculation on a possible link between HS-1 and both the facial neuralgia symptoms and facial paralysis of Bells. There is certainly some data out there which suggests that any condition of sustained facial neuropathic pain, in any of the 10 or 12 nerves that serve the face, can be associated with a vulnerability to other types or manifestations of neuropathy. But I must tell you in all candor, that I don't see much support in medical literature for such a link. In 15 years of reading this literature and talking with patients and doctors, I have never seen a case of TN that could be traced conclusively to HS-1. That isn't a proof, of course. It's just my research experience as a technically educated layman.
So how are you doing today with your overall pain profile, Shannon? Does the Lyrica seem to be helping?
Go in Peace and Power,
Red
PS: for your own safety, remember that my doctorate is in engineering, not medicine. Talk with your doc when you need to evaluate the input I've offered as a well meaning patient advicate.