Prolapsed vent with a yellow lump?

[AwakeHen]

Glad you were able to get that out, she may end up passing more, so I would definitely start giving her Calcium Citrate with D3. 1 tablet daily, just pull down on the wattles, pop it into her beak and let her swallow.

If the tissue has all retracted and is staying in, then the ointment may not be necessary.
I would however try to source an oral antibiotic to help with infection. Amoxicillin would be a good choice. Since you are in the UK, likely you would need a script, I don't think you can get anything OTC.

Yup, antibiotics are not the easiest thing to get hold off here, but I'll call the vets tomorrow.
The calcium citrate tabs I have are massive so I crushed one earlier and mixed it with some natural yoghurt - she scoffed it all up.