I have opened the medicine two months earlier. Now the disease has relapsed. Whether I can use the same one or I have to buy a new one.
It is not safe to use eye drops that were opened two months ago. Most eye drops, including Betoact, should be discarded 4 weeks after opening because the preservative may lose its effect and the drops can get contaminated, which may cause infection. Since your bottle has been open for a longer period, it is advisable to purchase a new one for safe and effective treatment.
