Of course you want to protect your SO and also your relationship and so must abstain for 3 weeks. Can you get away with this somehow?
If you seldom have sex anyway, happy days.
If not create a row, better if you instigate something that you know she'll escalate and then you can react to by moving out for 3 weeks. (Or an instant business trip without any row if you are the boss and so can arrange it.) If you get the all clear happy days. Blame workstress back to happy families and fewer naughty BBBJs.
If not in the clear...well this is hard to dodge if the treatment plan it very long...
Ballsy move, hard to pull off, but gotta be better than coming clean.
This is all if it's syph which according to my std doc 20% of PRC have

He also says that it can go undetected for as long as 6 months and within that time you can still infect your partner. I don't know how likely this is but it's still pretty scary.
If it's just HPV who gives a shit. Everyone has it, it can stay dormant for years and flare up. Having an outbreak doesn't mean a thing. Maybe even tell her about it ask if she had it before and maybe gave it to you. Then officially go to the doc, "find out" it can be dormant go back and apologize.
(Small risk her of her coming clean about her own naughtyness

)
Go luck, in a slightly similar circumstance I too thought of coming clean, if nothing else it takes away the worry. But I was given the same excellent advise as above, DENY DENY DENY. Glad I took it. It was a horrendous ride but all was well in the end.
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Last edited by bcs74 at 15-10-2011 16:33 ]