Regarding Okacet-L dosage

Patient: Hi, I have some symptoms of allergy.. Itchy eyes, running nose, sneezing.. I have started taking okacet-L (5mg). Is it fine? and what should be the dosage (1 in a day or 2 in a day)? I am asking this because i have seen that this medicine have so many side-effects.FYI, I am 24 yr old. Female. Not on any other medicine. Healthy otherwise this allergy.

Symptoms: Sneezing, running nose, itchy eyes.