Recent use of which type of medication can increase the risk of yeast infections?

Antibiotics are known to disturb the natural balance of bacteria in the body, particularly in the vaginal flora. These medications target not only harmful bacteria causing infections but also beneficial bacteria that help to maintain normal pH levels and prevent the overgrowth of yeast. When the levels of beneficial bacteria are reduced, yeast, particularly Candida, can proliferate, leading to an increased risk of yeast infections.

While antivirals primarily target viruses and do not directly interfere with fungal populations, antihistamines are used mainly for allergies and have no significant effect on yeast. Analgesics, used for pain relief, do not have any direct impact on the flora responsible for yeast balance. Therefore, the link between antibiotic use and the increased risk of yeast infections is well-documented, making them the medication type associated with this risk.