The next day is too soon for any STD. No sexually acquired infection can cause symptoms the next day; it takes 2 days minimum, usually longer. Also, "slight pain/irritation" without discharge usually doesn't mean an STD unless there also is discharge from the penis; and frequent urination isn't the symptom of any STD. I don't think you have herpes, NGU, or anything else physiologic. I see no reason for a herpes blood test; if positive, it won't mean you caught it during the exposure you describe or that it explains your symptoms. Your symptoms are most suggestive of anxiety over the event, not an infection of any kind. I say forget it, with the expectation the symptoms will fade with time. But of course continue to follow up with your health care provider if symptoms persist.
Happy holidays-- HHH, MD
I thought frequent urination is symptom of STD including Herpes (Lots of websites state this). Is this not the case?
Is lower left abdomial (abdominal) pain above the shaft of penis common of Herpes or could that just be a reaction to the Doxycycline.
As far as protected sex goes shoudl wait a certain period of time?
By itself, urinary frequency is not a symptom of herpes or any other STD but sometimes frequency occurs in combination with discharge or painful urination. Also, frequency only counts as a sign of infection when it is urgent urination with small volumes. Just peeing a lot, with substantial amounts of urine, isn't a symptom of any infection.
This is an important lession about web-based health information: almost every symptom described, for any disease, is more complex than can be conveyed in just a few words. Just reading a symptom and saying "I have that, I must have [disease X]" is rarely justified.
HHH, MD