Hi..
Welcome to Healthcare Magic..
I have gone through your query and can understand your health concerns..
As per your complain the white patches on the tongue are due to Thrush itself and as the infection can be more extensive this time leading to persistent lesions and pain..
It will not subside simply with mouthwash and you need to take
Oral antifungal medicines like
Fluconazole or
Itraconazole for a period of at least 14 days..
Gargles with antifungal medicines like
Nystatin mouthwash will help..
You can take antifungal lozenges for relief..
Take more of probiotics like Yoghurt and Garlic as it helps in clearing up of the patches..
Drink plenty of water to maintain hydration and prevent
dry mouth..
Hope this information helps and thanks for writing to Healthcare Magic..
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Thanks and regards..
Dr.Honey Nandwani Arora..