Irritation is in vagina or urethra is not clear. If it is a recurrent issue then you must check for urine culture. Homeopathy will be very helpful to you in this problem.it will give permanent solution. Feel free to contact for consultation.
Next Steps
remove genital hair and keep the area clean. wash the area with soap and water after every time you use toilet and also after intercourse.
Health Tips
while giving urine sample for culture do not was area with soap as it may alter the results. get it done before you start with this habit.
if the problem is irritation in vagina then the line of treatment will be different.