Prostatic enlargement per se doesnt need any treatment unless you have symptoms. Prostatic enlargement can have either voiding symptoms like straining during urination, poor stream, interrupted flow or irritative symptoms like frequency both day and night time , urgency. Your symptoms are more of irritative kind which are best treated by certain medications. Treatment depends on the severity of symptoms which is affecting quality of life. You need to visit a urologist
for thorough assesment and examination of your symptoms.