First honest answer is sure there is good treatment of urethral stricture, in ayurveda. Secondly, I would like to acknowledge you that there are 67% chance that after dilation of urethra, you may not at all need any treatment. you are quite young and your body is developing. your body is developing because of
kapha and vata.
strictures are developed by kapha which is concreted by excessive vata. so let us not overthink or make a obvious futuristic view of the matter. because excessive mental activities are the prime cause of vata imbalance.
If we consult, after your detailed history, I would suggest certain herbal diuretics, and urtheral lining rejuvenation drugs available in ayurveda.
Next Steps
consulattion
Health Tips
avoid excessive mental activities