Hi there. Thank you for your question. I will be helping you out with your queries
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So you do need PEP as far as I am concerned particularly if the HIV status of the person is not known
The main side effect of treatment is nausea and vomiting.
If the person whom you had sex with was HIV negative then you do not need PEP
The chances of getting HIV are very low if he did not ejaculate inside and only for 10 seconds like you mentioned.
But even then PEP should be considered in your case
Side effects vary from person to person.
Some people do not experience them at all.
PEP should preferably be taken ASAP
The best period to take it is within 24-48 hours
If more than 48 hours have passed then the effectiveness is very limited
Yes 72 hours
You are right
But after 48 hours the effectiveness is limited
It would be around 1% or lower
Yes even at 60 hrs it is worth it.