My Chinese Water Dragon is sick, vet not an option...

[LostprophetFLCL]

So I thought my little water dragon might be constipated. He hadn't been pooping and wasn't eating much this past week.

I finally took him out (he doesn't like being held so I was avoiding taking him out while he seemed to not feel well) to give him a bath and do treatment for constipation when I noticed these little bugs (I have seen them a little bit before when changing out his tank and though they were baby crickets) came crawling out of his mouth which looks to be a bit black and bloody now (something I had NOT seen earlier).

I lack the funds currently to bring my little guy to the vet so I am wondering if anyone on here would happen to know of any sort of home remedy I could do to treat this. I am pretty sure he is not really eating because of his mouth being sore.

A little bit more info, when I first got him he used to rub his nose all over the glass as is what lots of Chinese Water Dragons do. I treated his face with Betadine (I think that's what it was) then and put plants around the glass and the problem stopped over time. I have not visibly seen him rubbing against the glass much but his cage is also in a room I am not in terribly often.

But yes if anyone had any ideas on what I could do I would be so thankful. I am extremely concerned about him and was ready to rush the vet but I literally cannot afford to pay up front and even though I will have plenty of money to afford this in the near future, none of the vets around me do payment plans and I fear my lizard friend wouldn't last that long...