Hi dear user, Implanon can cause vaginal irritation
As per you history you are suffering from either vaginosis or yeast infection. In my opinion clotrimazole
pessaries are good in treating such infections.
You should get your blood glucose levels checked to rule out diabetes.
To increase your immunity you should start multivitamin
capsules single per day and increase your protein intake in diet (egg, pulses, milk; chicken, fish etc are good sources of protein).
Although these infections are common but the possibility of affecting your fertility after repeated infections; cannot be denied.