I don't know if feed stores or vet meds would have injectable lidocaine or not. If you had a sympathetic doctor who would give you a few vials, that would be a plus, but I can't think of any other way to provide local anesthesia to a wound. Maybe ice would numb it temporarily if you could get it.
As an ER nurse of many years, I think I would have a hard time suturing myself, but could do it if I had to. The key is really getting the wound clean. If you have little bottles of sterile "eye wash", you can squirt it into the wound for cleaning. If you have larger bottles, you can stick a needle into the cap several times and squeeze the bottle causing a good rapid flow of irrigant. If you don't have sterile saline, then you can make your own by boiling (I don't have the recipe, but it is a 0.9% solution and I know it is online somewhere), and use a sterile syringe to draw up and flush repeatedly until you are certain the wound is clean.
You will need a sterile field or at least a very clean one to surround your wound. You can carefully open some sterile gauze pads if you have nothing else and surround your wound so your sterile suture does not drag across dirty surfaces.
You can do all the cleaning of the wound with regular gloves, or none at all if needed, but you really should have sterile gloves to work with the suture. The key to suturing is to not make the closure too tight. You want to bring the skin together until it just touches. The tendency is going to be to make it very tight. Under less than ideal circumstances, you would be better off leaving it a little loose and keep it covered with a sterile dressing to protect it. That way if there is a bit of infection, it will drain out and not be locked in the wound to cause a systemic infection, something you really do not want!
There is a lot of good information out there on survival or ditch medicine, you just have to look for it and have it available to you when you need it, so copy it now and have it in a notebook with your supplies.
I know lidocaine creams and gels are available, but you don't want to get them into the wound, and I am not sure how you would effectively irrigate the wound with this in it.
All of the previous posts about super glue and steri strips is valuable, as many wounds will do just fine with those approaches. If you are talking about multi layer wound closures, you are going to need to be prepared with oral or injectable antibiotics as well.
I hope we never have to use this approach, but it certainly does not hurt to think ahead and be as prepared as possible.
I have bought a lot of meds from
www.alldaychemist.com to have on hand.
They are an Indian pharmacy and have a wide variety of meds. I have not been disappointed.
If anyone has construed the above info as medical advice, you have presumed correctly, but I can't legally offer it, but feel that anyone that may have what they consider valuable information should not keep it to themselves. I would like for everyone to be as prepared as possible for whatever the future may bring. It is up to the reader to decide if what they read is worthy of note.