Puncture plug problem, patches from inside any better ?

[Agusts]

I had a puncture plug in the rear tire when I got the Forza last year. It was losing air slowly, but last week I noticed it let even more air out than normal, so I thought let's replace the plug, maybe it will fix it. The usual corner shop happily had a go, but as usual a messy job. Couldn't get the fabric material out, so he just pushed it in, and put another one. Was even going without the glue until I asked him to put some on it. 

 

He really had a go at scrubbing the hole a lot though, and I think he made it even a bigger hole now...! 

 

Anyway, a week on and I still lose about 1psi a day, so pretty waste of time, though only cost 100 baht..., I was thinking is it worth trying those patches from the inside..., Are they any better...? Or is the hole just too big now and not worth the effort..., and have to get a new tire... (it's a few years old but still good, about 12k on it). It's the rear, so not as critical as the front... 

[scubascuba3]

I would just get a new one, not expensive, it's a PITA keep leaking