The difference a day makes! Thanks for all the advice people.
People appear quite divided on whether goop should remain or not I ended up choosing to keep on removing it. I cleaned it thoroughly again yesterday sprayed it with some iodine that I found then left it uncovered for the day. Did require a subsequent cleaning but eventually the flow of goop as subsided and this morning it is crusted over quite nicely.
I appreciate what people were saying about getting professionals to tender to it, if I was in UK I might have tried to see local surgery nurse as they are ace – here in Singapore it would cost me $ plus quite a long wait though.
I think what didn’t help is that I went down at the beginning of the race so the wound spent over an hour being bathed in jungle funk.
Found a pic of me rumbling round the jungle courtesy of the awesome xtbiker from pinkbike.