hey bud, redness could be due to your under tank heater, he must be in very close contact to it through the glass and bedding and it may be on too high use a dimmer switch like the guy above me said, or it could be early stage of belly rot too much water like soaking and if his enclosure is always very moist could result in belly rot, the weazing could be a sign of respitory infection or R.I. its fatal if it gets worse and could lead to mouth rot... the best way to cure it and you dont really need a vet for most snake problems unless its something internal, but it usually can be solved with heat, 100 degree heat get his inclosure to 100 degrees for a couple of days and watch and listen to his breathing, but make sure he has a cool spot of like 85 degrees to get out of the heat, but 85 is still quit warm, that should fix the weazing, remember to keep a close watch on him while his enclosure is at high temps, also keep a very big water dish in with him with cold water every day, that also will help with the high heat, do not spray with water too often, you want the air to be dry he basically has fluid build up in his lungs, so dry is a little better in this case, and about the shed skin as long as his eye caps aren't on he will be ok, if they are still on then spray his head with luke warm water and let his chill for like 2 min let the dry skin soak up the water do it as needed until you see caps start to ripple or if it doesn't then just wait until water is almost dry get some electrical tape or duck tape but make sure you dull the tape a little with your fingers, the gently place on the eye and pull slowly untill caps are off, (dont use tweezers to remove skin you can hurt or even cut the eye) and basically thats all. I am very knowledgeable about snakes and some lizards i worked with vets and reptile for a long time and myself ran into many of these same problems, unless life threatening at that moment dont take him to the vet you will get charged a arm and a leg and all he gonna tell you is what i just said...lol high temps... ok well hope that will help and if you have anymore questions please ask....