Help my leo

I was so busy to study exam, so I couldn't care of my leopard gecko. (my parents hate reptile)
and after the exam, I found my gecko didn't eat. I just thought he is stressed. BUT IT IS NOT JUST STRESS
first pic: Left eye is more swollen than right

second: Under the left eye is swollen, front of eye is something strange and he can't close his mouth


third:




*Not be able to see a vet until next month.




*sorry for my bad English!

Hello,

I really don't think this was caused because you did not feed your gecko. Swollen eye may be caused by bad shedding, when little piece of skin is left in geckos eye. On third picture, it looks like some kind of hemipenal issue, but I'm not sure about that. Anyway, go to the vet with your gecko.

Unfortunately, looks like your gecko has an infection on the left side of his face. A vet will be able to assess and determine what the underlying causes are and how to treat.

The vent area has an impacted hemipene. You may be able to help with soak in a small amount of warm water and try to remove the blockage.
More information on hemipene impaction: Impacted Leopard Gecko Hemipenes