Really at my wits end :(

[Wagtail]

Update - gave her 10 antihistamines in her feed last night as well as aloe vera juice and her medication. Managed to put some of the gel on her stomach also. This morning she seems far better. No where near as uncomfortable and the lumps have shrunk dramatically and are scabbing up and falling off.

Fantastic! If it starts to happen again, get them down her immediately and hopefully save having to get the vet. I hope she continues to improve. Obviously the vet must be called if no change within a few hours or her reaction is more severe.