You seem to be having adult onset acne.This acne tends to occur in late age rather than adolscence and the site of affliction is usually jawline. canesten or oral fluconazole
as such has no connection with acne. It might be a coincidence that you got the lesions after canesten use. However what i believe is you must have been getting similar lesions at the same site in past too. Studies say diet has role in acne flare dairy products and carbohydrates with high glycemic index
can lead to acne flares. In your case you can avoid such products. Also get your hormone profile and pelvic ultrasound done to rule out PCOD as it is the most common cause for adult onset acne. The condition can be treated with oral and topical anti acne medication like tab azithromycin
or doxy, topical clindamycin
or benzoyl peroxide
or adapalene gel along with a course of OCPS. TAKE CARE.