My Daughter Has Lymes Disease She Is On Doxycyline 100mg

my daughter has lymes disease she is on doxycyline 100mg x 2 daily for 3 weeks, I think she needs a 6 weeks course of doxycyline my dr said this could cause intercranial pressure problems she is and was a 63 kg 164 cm heathy 15 year old before headaches and facial palsy and a positive lymes test