Can i use a vaginal dilator without a doctors prescription?penetration never takes place as i am really tight?

Would suggest an exam before self treating as many other conditions can account for your condition. Best would be with your family doc or Gyn doc.

You can get these from various medical supply stores without a prescription however proper use and especially proper endpoint is important to have a valuated by medical professional. It’s also worthwhile to be a valuated for reasons for either vaginal atrophy or narrowing of the vaginal canal