Yes - over and over infections with Antibiotics will give brain fog - the person I care for has the fog and uti problems. I give brain enhancing b vitamins (choline, inositol, mutib's) along with the amino acids proteins (L-glutamine, acetyl L carnitine, methionine, tyrosine etc) and also for uti's 11 or 12 + drops mms at one time, at nite (work up dosage of drops gradually). Also I think liposomal glutathione helps brain fog - given at nite.