M.H.
Hi N.,
They should be taken as far apart as possible. For example, if she is taking the antibiotics every 8 hours then the probiotic should be taken 4 hours after the antibiotic.
Check into Chiropractic care for the ear infection. My daughter stopped having them as soon as the chiropractor started treating her. Hers were bad enough, and often enough, that the doctor wanted to put tubes in her ears and we were able to dodge it with chiropractic care.
God bless,
M.