Hello all,
2 weeks ago now I took my 7 year old burmese python to the vet with what I suspected was blister desease. $600 later vet prescribed anticeptic bath and silver sulfidine cream twice daily, anti-inflamitory daily(oral) and antibiotics(oral) every other day.

I have noticed his activity level has increased in these 2 weeks which indicates to me he is in less pain/discomfort. Affected areas on his belly have dried up somewhat and turned to scabs.

Questions are:

Some scabs have come off in the last 48 hours leaving open pink soars. Is this good or bad??

He dispalyed a new behavior of laying on his back showing his belly this morning. Any thoughts on this??

How long should I continue the antibiotics and other treatments?

He has a grape sized lump on his dorsal area 18in before the cloaca. What could this be?

Thanks in advance for all assistance, truly.
-----
1.0 Ball Python
1.0 Burmese Python
0.1 Albino Banana California Kingsnake
1.0 Common Snapping Turtle
1.0 Eastern Painted Turtle
1.0 Eastern Box Turtle