Yea with my guy and also from what i have read, it seems that once a chameleon reaches a certain point of dehydration they seem to not try at all to drink even if they are "soaked" or surrounded by it constantly. Almost like they are giving up. Im not sure about your situation since im not present and am almost hesitant on giving this advice, but it may help you. Just know that this is not at all recommended by anyone to do and it may be bad advice. I honestly would not do it again unless i was absolutely desperate and death was almost certain. Many know that this is not a good thing to do and can be dangerous, so this is gonna have to be something you want to think about and weigh the chances before hand. I know i will probably get blasted for saying this on here and i agree its not a good idea, but when my guy was looking like absolute death. After trying the shower method, and soaking with pedyalite wasn't helping. Even trying to put water into my palm around a worm wouldn't help because he stopped eating. It was a saturday morning and i dont remember the situation but i was not gonna be able to get him to the vet until monday and i could see he was not gonna make it much longer. I decided to go against my better judgement and all the research i had did and go ahead and drop water into his mouth. It was scary because its said they can aspirate like this really easily. I did it as a last resort on saturday morning. It was a moment where I truly felt hopeless/sad and powerless. Its funny because that whole night I did nothing but worry, my girlfriend could see it on my face all night. He was the only thing on my mind, the stress and guilt of been the one to let him down literally kept me awake for the majority of the night. Im not exaggerating when i say this but i have never lost sleep like I did that night, and this is coming from a person who did 4 yrs in the Marine Corps with two combat tours to Iraq lol. That little guy had me shook. So as a last resort I started dropping a few few drops of water into his mouth three times a day for the first day and then after i would do it two times a day. If i remeber correctly i only had to do it 2 or 3 days and like i said he bounced back almost over night. His eyes no longer caved in and was more energetic. I think it took him about two more days after drinking on his own before he started eating again, but it worked. Again, i would only recommend this as a very last resort, but if you can get him to a vet and can get them to hydrated him i wouldn't attempt it. I do acknowledge that i was wrong and that i should not be posting this on here. I don't want others to see that their cham is slightly dehydrated and attempt this, and kill their chameleon. Its very dangerous but worked for me.