Dexamethasone induced ptosis, is this issue permanent?

Hello, I unconsciously used Ciloxan pomade for eye chalazion for about 2.5 months, without the supervision of a doctor. After the surgery, I used maxidex and maxidex for about 3 weeks and unfortunately I had ptosis.I stopped using everything the day after I realized the situation. My doctor recommended me Benexol and told me to watch it 6 months. My question is; is this issue permanent? Have you ever seen such problem on ur patients? What you recommend?