Just to make sure, put the snake in a small container(with air holes) filled with very moist spagnum moss or something similar and keep him in it overnight. Make SURE the snake does NOT get too cold during this process!as this will make his respiratory condition even worse!!. keep the snake at around 85 degrees. Don't guess at the temp., use a thermometer. By the next day, if it had old shed skin on it, it should have been able to slough it off by then.......double check to see if there is old skin on the snakes body, it will look separated from the new skin on his body, and might have been too weak to remove it on his own due to the infection. If you do see this separation, gently grasp the snake behind the head, and gently push up on his upper lip from underneath to get the skin to start separating, repeat this process on the bottom lip as well, then you will be able to start the process for him. Make SURE the lenses(ocular scales) come off of the eyes, and ALL the old skin comes off, regardless of how it gets done, this is VERY important that all of it comes off!.......okay, now that that's been addressed, you are still left with a snake that most likely has a severe respiratory infection. It still needs antibiotics, and kept around 84-86 degrees so his "auto-immune" system can help combat the infection!.....when snakes hold their head up and gape, it is pretty bad at this point!....you can verify this by listening very carefully to see if you can hear any "wheezing", or bubbles coming from the nostrils.....in any case, it needs medical help, and SOON!........hope this helps steer you in the right direction....hope the snake pulls through!,...............Doug
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Better to be silent and thought a fool, than to open mouth and remove any doubt!