And just to reiterate what Blue Eyes said:
Do not give your rabbit amoxicillin. This could cause fatal enterotoxemia. I would also suggest not consulting with a vet online again, that isn't knowledgeable about rabbits. And make sure your regular vet is an experienced rabbit vet.
Medirabbit: dangerous antibiotics for rabbits
https://wabbitwiki.com/wiki/Dysbiosis
https://rabbit.org/vet-listings/
You really shouldn't be exposing any other rabbits to her and her babies, and the best thing would be to quarantine the mom and babies from all other rabbits, as well as quarantining any other rabbits that have been exposed to her in the last few weeks. You also should be changing clothes and disninfecting yourself after being around her and before being around your other rabbits. If you're a breeder/shower and your rabbit ends up having pasteurella, it could infect your whole rabbitry.
To really be sure, you need to have her tested to determine the bacteria involved. If it is pasteurella, she and her kits and any other rabbits exposed, need to continue to be isolated. Pasteurella can be extremely difficult to completely clear up, but if your vet is able to do this with the right antibiotic, then you really need to make sure she is free of the bacteria before she is allowed to be near other rabbits again.
https://wabbitwiki.com/wiki/Pasteurellosis
https://www.merckvetmanual.com/exot...rial-and-mycotic-diseases-of-rabbits#v3306442
Medirabbit: respiratory issues in rabbits