You could try the herb Uva ursi. This is traditionally used for bladder infections. It can also be taken low dose as a preventative over several months. Do remember to take a course of probiotics to rebalance the friendly bacteria in the gut, as you have had antibiotics. You may find a vitamin B Complex and zinc supplement helps with the tongue, and/or using herbal bitters before food. Make sure you’re drinking heaps of plain water daily to keep your urinary tract flushed through, and avoid caffeine and refined sugar until you’ve not had any infections for several months.