Gwenith I beg to differ with your opinion on American Nurses and wound care. Almost every nurse I work with in home health is an excellent wound care practitioner, and if not when they start, give them 2 years and they are up and running.
Maybe nurses in the U.K. are better at it overall? but, I can only address what I know.
Jaded, when I see a wound that is long term and does not heal, it has been my expereince that there may be foriegn matter, like a suture or a piece of packing or something like that which is acting as an irritant, and results in drainage and non-healing. In this particular case however, since it is from a G-tube, I would think he should be evaluated for the development of a fistula. I am not sure what the appropriate testing would be, maybe an ultrasound or a MRI??? But I would first have it explored diagnostically and/or surgically.
Perhaps you shoud take him to a wound care center or a plastic surgeon for an eval. Other than that, just suggesting a treatment may be no different than simply putting a bandaid on it. You could try many things. A simple duoderm wafer, packing with a hydrogel impreganated guaze like restore, or even a wound vac, but if it hasn't healed on its own in this length of time, 8 months for a small wound like a G-tube insertion site? Something else is going on. I don't think it's life-threatening, but I think if it is bothering you or your boyfriend, it is affecting his quality of life, and deserves a better explanation that give to you by his doctor (his primary I assume?)
Good Luck to you.