So, I have 2 female degu´s, almost 4 years old.
The other one, Hulda, has always been healthy, but the other one, Hertta, started having tooth-related problems last December.
She lost weight, she used to be bigger of the two.
Her lower front incisors grew too long, and it made it hard for her to eat anymore.
I fed her some crushed pellets at that time.
She weighed about 140 grams when we took her to see the vet.
So, we took her to a vet back then, and the vet clipped her teeth, and removed one of her molar tooth.
They gave me a 3-day prescription of Baytril, and some Critical Care to syringe feed her, and she got better pretty quickly.
She gained most of her weight back, and started eating hay and pellets normally.
Everything went well for a few months.
But just a week ago, I noticed, that one of her lower front incisors was missing.
She still ate normally, though.
I monitored the situation, to see if it got worse, or anything.
Well, after few days from that, the place, where the tooth were missing, started to get a bit swollen and sore around the lip.
I called the vet immediately, and got an appointment (It was this monday)
They looked Hertta, and clipped her upper incisors a bit.
Her molar tooth were good.
They also cleaned her rash in her lip a bit.
And they gave me another 3-day prescription for Baytril.
And some cleaning stuff for her rash.
Now, it´s Wednesday, so 2 days after the vet appointment.
Hertta has gotten better, she eats some crushed pellets, and I have fed her some dried carrot pieces and little pieces of wood.
The problem is:
How do I make her eat more hay?
(Or at least more hard food, to keep teeth for growing too long?)
Could it be, that the mouth is too sore, that I just have to wait?
She hasn´t touched hay since the pet visit.
It would be important for her to get eating hay, to keep her teeth short. (Her teeth are orange, as should be

)
And, when I try to feed her pellets, she just puts it between paws, and drops it.
(But, he eats crushed pellets, as mentioned before)
And I have been syringe-feeding her Critical Care, she likes it.
I have been said, that it´s a good sign, that she eats something, so she has appetite. and she is energetic, she likes to "chirp" with her friend, and acts normally.
I gave her a whole hazelnut today, and she eated it, I saw, that she used her all 4 incisor teeth, so I quess that´s a good sign.
It took her a while to eat it, but I had to get her chew something.
Any tips for our situation, would be greatly appreciated.
-As for the rash around mouth, it is gotten better, no swelling, and I have been cleaning it everyday
And the vet said, that it should heal in 2-3 weeks, it´s normal rash. And the fur around the chin should grow back, too.
Any help would be appreciated, I love Hertta so much <3