It looks like subspectacular abcess. This can be caused by a blockage in the nasolacrimal duct which drains fluid from the space underneath the spectacle. Usually, an infection in the mouth causes the blockage. Alternately, an infection in the mouth can spread upwards.
Take a look inside the snake's mouth and look for any signs of infection. Unfortunately, you can't do a lot yourself. Treatment involves antibiotics to clear up whatever infection might be at the root of this. Typically, an incision is made in the spectacle to drain and flush any fluids. The spectacle wil be replaced at the next shed.
If you absolutely cannot get to a vet, I guess I'd recommend sterile cage conditions (replace your substrate with newspaper), higher cage temps (make sure the animal has an 86° basking area), and oral application of betadine if there are signs of infection (betadine can be prchased at a drug store).
Good luck and pleae keep us posted as to any progress/development.
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Mike Lockwood
www.tooscaley.com