My name is XXXXX XXXXX I have been a Vet Tech for 30+ years with Special interest in Reptiles and Reptile Rescue.
Please stop the Tea Tree Oil as it is toxic to Pets. The aloe is not the best either. I would speak to the Vet about Silvadene Ointment. It is a Specific Burn ointment and will work well on the area. I am concerned about this being a Themal burn since those go deeper than the outer layer of scales and skin. I would continue cleaning with the Tamodine which is made to treat burns, but you need the Silvadene Cream which is very specific for this type of burn and safe to use on the snake. It is a prescription medication and will help heal the area. The Tamodine, can turne the slin a bit orange, but the green may be coming from the combination you have been using of the tea tree oil and aloe. This is some information on Silvadene Ointment: http://www.anapsid.org/burns.html
Please let me know if you have further questions.