Hi Lauras, so sorry to hear your mom is sick.
I too had many people telling me that I couldn't and shouldn't be on long term antibiotics. However, the way I looked at it, if you have any kind of disease, you take medication to treat or beat it. if it takes longer, so be it. In my case, I was on antibiotics for over 2 years and I now feel great. Will I relapse, who knows but hopefully my body will continue to fight off what is left of the bacteria on its own, which it is supposed to do. Lyme is very complex and unfortunately, there is not alot known about it yet.
With the right treatment and doctors, your mom can get well. There is nothing wrong with seeing a psychologist which alot of us do with lyme. Lyme really affects the brain and central nervous system making psychological and psychiatric treatment necessary. I hope you get some answers soon. Seeing an LLMD may make all the difference to your mom. It gave me my life back. I wish you both the best.