I have read through some of your most recent threads about oral chlamydia and I have some questions- 

I recently gave a friend a blow job. I’m 39f ,he is married 46m. I am totally regretting my actions, but that is neither here nor there. The blow job was short, and no ejeculation occurred. 

Any who I have read where transmission from penis to oral is rare, and that it self cures in a matter of weeks. 

My question is- what is the self cure rate? Does everyone self cure? After say 6 weeks do I need to be worried about possible transmission to another person from my oral cavity? 

If one performed oral sex on a male and a week later received a diagnosis of strep throat should the Z pack also take care of oral chlamydia ( if they also had it)( even though it’s not at the correct dose, or drug of choice) 

First, chlamydia is basically an STD of youth. Its frequency at any anatomic site is extremely low beyond age 30. The reasons are not entirely clear, but probably it has to do with previous infection, both with sexually transmitted chlamydia and related bacteria that cause respiratory infections. But it is exceedingly unlikely that your friend is at risk or has urethral chlamydia. Second, your "anyhoo" statement also is exactly right. The self cure rate appears to be 100%, or close to it, often within 2 weeks and almost always within 6 weeks. A third point, although you don't ask, is that when infected people test positive with a throat swab, it often detects only chlamydial DNA and not intact bacteria -- which means it is not transmissible to partners. Finally (also unasked) is that oral chlamydia causes no known symptoms:  no sore throat or anything else. 

As you have already learned, azithromycin in the Z-pack regimen hasn't been studied and isn't ideal treatment, but probably it would cure the large majority of pharyngeal (oral) infections that happened to be present at the time.

For those reasons it is very unlikely you were exposed and even less likely infected, and even if you had it, nothing bad is likely to come of it, including little or no risk for transmission to your current or future sex partners; and probably zero risk after 6 weeks.

Don't get me wrong:  research to understand pharyngeal chlamydia so far has been pretty basic, and new information could become available. One aspect of possible concern is that even if pharyngeal chlamydia is uncommon and transient, some studies suggest it could result in colonization of the GI tract (by swallowing) and later show up as a positive rectal infection; and rectal infection often results in genital infection in women, simply because the entries are right next to each other. This might explain the not-too-infrequent situation of women testing positive despite not being at current risk (e.g. no sex in recent months). So it's reasonable to keep alert to new developments. But for now, I really think you have nothing to worry about at all.

I hope these comments are helpful. Let me know if anything isn't clear.

HHH, MD

I know I had ancef for surgery- would that have any activity against chlamydia?