My symptoms are sore throat, numb tongue, dry mouth, discoloured tongue no sense of taste and the dr tells me I have an oral bacterial infection and prescribes me nystatin oral suspension, cephalex 250mg (3x per day), and mylanfluconazole 50 mg and my symptoms are still the same considering I've been taking them for 4 days now. What should I be doing at this point? I'm feeling frustrated because it feels like my throat is worse