Injured scales or dropsy?

Flare

Small Fish
Apr 23, 2005
30
0
0
St Louis
#1
My betta seemed to have injured a few scales on a plastic plant months ago. The scales look raised. I changed to silk plants. However, the scales have not went back to normal and there are now a few other spots of raised scales. They are all on the same side. He has not been swollen. But could this be beginning dropsy? If so, how to treat?

Thanks,
cj