I would suggest seeing a therapist
Your question is actually a known but relatively rare sexual fetish. As with all such thing, I can only stress the phrase "Safe, Sane, Consensual". Of course be as clean as possible. I'd probably recommend a condum for several reasons. It would reduce risk of infection, and honestly his ejaculate is like to "salt the wound " increasing your pain. You've said you have a high pain tolerance, and that both you and your partner are curious about this. You haven't stated whether sexual pain does it for you, and so you might want to consider that. Certainly there will be emotional consequences to experiencing wound sex, both for you and your partner.
Thank you both very much for replying ^_^ your answers were *much* more helpfull than the original responders and it seems like you actually read my whole question. Thanks for all of your advice and warnings and i will deffinately be asking more questions here soon :D
I agree with tschock
All I can offer is to proceed with caution and care. May I ask about this wound? I only ask out of pure curiosity. How did you get this wound? Are you suggesting that your boyfriend penetrate your wound with his penis?
I am just worried about staph infection.. You are risking contracting MRSA and other highly toxic bacterias into your body if you do this. I am by no means trying to tell you what to do.. I am an LPN and I am just concerned about the possibility of infection. It doesn't matter how clean your partners penis is, you are still risking possibility of MRSA, Gangrene, injuring surrounding organs and tissue.
If you develop a fever (even low grade) discharge from the wound that is yellow or green or discharge that has a foul odor, nausea, vomiting, diarrhea.. I would advise you go to the Emergency room ASAP.
Again, proceed with caution. The probability of infection in this case is extremely high. I only say all of this out of concern and not out of criticism.
Good luck hun
~VQ
There is always risk in infection, even without him ejaculating inside the wound.
I see that you feel strongly about doing this, so I won't tell you not to, but please be sure to cleanse the area thoroughly before and after, and be sure to seek medical attention if you SHOULD develop any signs of infection.
Another risk is that it could cause the wound to not heal properly...and it may leave a very large hole/scar.
Hope this helps.