How long can ointment be kept once opened?

The shelf life of an opened ointment depends on the specific ointment and its ingredients, as well as the storage conditions. Some ointments may have an expiration date listed on the packaging, while others may not have a specific expiration date. Here are some general guidelines for how long different types of ointments can be kept once opened:

Antibiotic ointments: Most antibiotic ointments should be used within 14 to 28 days of opening. The exact shelf life may vary depending on the specific ointment. Once opened, antibiotic ointments should be stored at a room temperature in a dry environment, away from direct sunlight.

Steroid ointments: Steroid ointments should typically be used within 14 to 28 days of opening. The exact shelf life may depend on the specific ointment and its formulation. Steroid ointments should be kept at room temperature, away from moisture and sunlight.

Non-prescription ointments: Non-prescription ointments, such as petroleum jelly, diaper rash ointments, and topical analgesics, can generally be used for several months once opened. However, it's always a good practice to check the packaging for the manufacturer's recommended shelf life.

Always follow the manufacturer's storage and usage instructions, which may vary depending on the specific ointment. If you notice any changes in the appearance, odor, or texture of an ointment, it's best to discard it and use a fresh one.

To ensure the safety and efficacy of ointments, it's important to avoid contamination by keeping the tubes or containers closed and clean, and by washing your hands before and after each application.