I'd say you're worrying over something that is unlikely to occur, about
your proctitis spreading. Lets throw some odds at the query.
"Approximately 10% of patients presenting with proctitis will develop a pancolitis (Rowe)." Turn that on it's head and 90% of proctitis patients don't develop pancolitis.
Source:
www.mdguidelines.com/ulcerative-colitisGenerally speaking, mesalamine is the better choice for long term maintenance of your symptoms over hydrocortisone. Mesalamine is an anti-inflammatory medication and combats rectal inflammation well. Mesalamine is well tolerated by most and generally doesn't produce side effects.
Hydrocortisone enema is a type of steroid, they are great and strong temporary rescue medications but not a true maintenance treatment. Steroids are notorious for nuisance side effects, and you might get some even with topical rectal use over an extended period of time. Use them, they help greatly, but plan to be on them for as short of a period of time as possible.
UC always has rectal involvement, rectal inflammation is the first to appear, most difficult to treat, and the very last to go away. So, having proctitis doesn't spare you of the most troubling area of treating uc. I'd hit the inflammation hard with anti-inflammatories. If it were me, then I'd ask your doctor about
a 4.0g/60ml mesalamine enema. That's the maximum dose mesalamine rectal route. You could ask about
adding an oral mesalamine, like like lialda/apriso/asacol in addition (up to a maximum dose of 4.8 grams a day). Generally, they recommend using the maximum oral and rectal dose of mesalmine before progressing to stronger medications. Proctitis can sometimes require those stronger medications like immunomodulators or biologics, it can be stubborn, but exhaust the first level of treatment (anti-inflammatory ) at max dose first.