Hello,
Thanks for posting your query. I can understand your concern.
From the history you have provided, it seems that you are passing on yeast infection. Its also called candidiasis.
The treatment for this would be taking oral anti fungal medication like fluconazole for both you and your partner.
Also you would benefit by application of clotrimazole cream while your partner would benefit by using clotrimazole vaginal pessaries.
Its an easily treatable yeast infection and you both will improve with the medications.
Hope I have answered your query. Please let me know if you have any queries.
Take care.