Ointments also have a shelf life. Use them after the expiry date.
When I look in the mirror to find a long bag on my face, I find out the ointment and wipe it, which is an experience that many people have.
But how long can they last, you know?
Pi Yan Ping Ointment (hormonal ointment) Pi Yan Ping is valid for two years, but its shelf life will be shorter after opening.
If the shape of the extruded paste is found to be changed, it will not only have no effect but also cause adverse effects.
Clinically, there have been female patients who accidentally used outdated dermatitis, with erythema and peeling on their faces, and they were “disfigured”.
Erythromycin ointment (antibiotic ointment) antibiotics ointment has a longer period of validity, short 2-3 years, the longest is 15 years, pay attention when using, if the ointment has dried out, it is best not to use.
Analgesic and anti-inflammatory ointment (Chinese herbal ointment) In addition to the analgesic and anti-inflammatory ointment for bone injury and rheumatism, there are some ointments based on Chinese herbal medicine. The efficacy of such ointments will weaken over time, and the medicinal value will decreaseFor example, ointments containing volatile ingredients such as mint and musk will dissipate with the aroma and affect the efficacy.
Angelica ointment used for frostbite, because angelica will “oil” after a long time, that is, it will produce oil after deterioration. It is recommended to use it within one year after opening.