Scale discoloration, possible necrosis?

[2010ngojo]

Hi everyone,

I've noticed some scale discoloration near the rear end of the belly on my ball python a few days ago. And noticeable dark red/brown discoloration at the tip of the tail. I know this could be a possible scale necrosis. I was wondering if should I wait a little longer to see if it will heal, or prepare to go to a vet and get him checked and possibly get some medicine before it gets too bad. Or if possible, is there anyway for me to help it heal before it needs medicine? Here are some pics.

http://postimg.org/image/dhnct4naf/

http://postimg.org/image/bl4laf5d1/