Hello, Thanks for your query. Yeast infections such as Candida were an indicator of much larger underlying diseases such as diabetes mellitus, malignant tumors, and chronic infections. (Sort of the miners canary.) When antibiotics are used, there is a flip-flop in the balance of the natural occurring flora in the mouth (and elsewhere) where the normal flora is damaged by the antibiotic therapy to the advantage of the fungus, which then blooms. Antifungal drugs are available in different forms: for example as mouthwashes, ointments, lozenges, syrups, tablets or infusions. Topical antifungal agents include nystatin and clotrimazole (or other closely related agents), either of which may be applied directly to the oral lesions as a dissolving lozenge or in a liquid wash. I do hope that you have found something helpful and I will be glad to answer any further query. Take care