Hi there. I've had this rotten disease for more than a decade...if the dog has it, the human is at great risk also. It tends to start slow, with feelings of fatigue, headache, "flu", and aching joints.
Dogs tend to recover from uncomplicated lyme disease better than humans, and the approach above might work -- if the problems is Lyme/borrelia alone, and if the dog has not been infected long.
One of the problems with "Lyme" disease is that it is usually a cluster of tick-borne diseases -- babesia, Lyme (borrellia burgdorferi), erlichia, bartonella, and various viruses. For this reason, one antibiotic is usually insufficient -- the different bacteria need different treatment, and viruses need, of course, antivirals.
Treatment time is often measured in many months to years and multiple antibiotics. Many folks use additional measures -- Rife, herbal treatments, homeopathics -- to speed up healing.
It can progress to seizures, heart block, muscle weakness (it's often misdiagnoses as ALS or MS -- yes, it really does get that bad), and ultimately complete disability.
Depression, anxiety, anger and cognitive deficits like memory loss and the inability to find words often accompany the mid and late stages of the illness.
Treatment is often very, very difficult once you progress past the first few months--so if you suspect Lyme disease, don't wait! Find a lyme-literate doctor or vet immediately. Most doctors, especially those that specialize in infectious disease, are still in denial or ignorance about this illness and neither diagnose nor treat it correctly. The people in our local Lyme support group usually travel at least 4 hours out of our small town to get treatment.
For some reason this has become a highly politicized disease -- very similar to HIV in the 80s -- and it's difficult to get clear answers about it from the standard medical sources. Feel free to PM me if you need more help.
There is probably a Lyme support group in your area, and the folks there can point you to the vets/doctors they use.
Here are some links that might help:
For dogs:
http://www.acvim.org/uploadedFiles/Consensus_Statements/Lyme%20Disease%20in%20Dogs.pdf
http://www.canlyme.com/animals.html
For humans:
Great online information resource:
http://www.lymeinfo.net/patients.html
National online forum:
http://flash.lymenet.org/ubb/ultimatebb.php?ubb=forum;f=1
International Lyme and Associated Diseases Society
http://ILADS.org
Support groups
http://www.lymenet.org/SupportGroups/
Good luck