How long back did you have the allergy? From the pictures currently it doesn't appear to be an allergy, the redness is only in one part/sector of the eye (in the pictures sent )
This will definitely require a better view, kindly do q video consultation so we can get a better assessment.
Also, any coexistence if
diabetes/blood pressure/ skin allergy / asthma
Next Steps
Toba F will not cause pain, the pain is due to the underlying condition, for which Toba F maybe too mild as of current situation
Health Tips
pls consult online so we can examine over a video consultation, and get more details of history and for examination. will need a proper consult and medication accordingly