Sorry to hear about your hubby's Lyme.
I agree with the others that seeing an LLMD (Lyme Literate Medical Doctor) is the best thing to do.
I saw my family doctor, an infectious disease doctor, ear doctors, brain doctors, etc - and they all told me there was nothing wrong with me.
I was very sick and to hear that news did not make me feel better although I'm sure they meant well.
Seeing an LLMD saved my life but it took 9 long months of seeing those other doctors until I found one. I got sicker and sicker (my grammar is horrid - sry!) during that time.
Peace and health to you and your husband. Hang in there!