Sir, I Am From India. Nurses Gave 2.5 Ml Of

sir, i am from india. nurses gave 2.5 ml of polio drops (instead of 2 drops) to my 2 year son. due to overdose, after a week, now my son is suffering from fever, wound in mouth and breathing trouble. i am fear that this will lead to paralysis or any other side effects. please clear my doubt