Take your surgeons advice on antibiotics - report any problems back to them or your GP without delay, no-one else has enough case details to comment usefully. 2 days after surgery such as yours is a very short time, the pain will gradually improve over the first week or two.
Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.
Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.