Mucus will be seen in stools after consumption of antibiotics only when the normal bowel flora ( bacteria ) gets altered by it.
It commonly happens after a prolonged antibiotic course and because of some specific antibiotics
I did not mention it previously because your history suggests only 2 days of antibiotic consumption
If you have stopped the dosage and if you are not having the mucus discharge then there is nothing to worry about
I hope this answers your doubt
Next Steps
try adding curd to your diet. it helps replenish the bowel flora.
Health Tips
review back if you still have any doubts after the measures I have given above