A swelling like a pimple at anal region may not necessarily be piles. It could be the external opening of anal fistula or even a skin tag associated with fissure.
Next Steps
You need to see a general surgeon, for clinical evaluation and examination in order to diagnose your condition. Surgery will be recommended only when needed after diagnosis is complete
Health Tips
All anal problems are worsened by constipation. Please consume plenty of fluids and fiber rich food