Eating problems

Question
Hello. I have a two year old piggie who lost weight over a couple of weeks and also lost her fur on her stomach. I treated her for everything (mites, fungal infection etc) but nothing doing. I observed her closely yesterday and saw she was all excited about the food going into the piggies' run but sniffed it and did not eat. This alerted me to look into her mouth and finally to my horror I realised her teeth had grown too long. The vet has clipped them (this was the first time he had ever done it as I live in India and piggies are not favourite pets) and I thought she would jump at eating again but not at all. She sniffs, it licks it but does not actually nibble it. Could it be her teeth are hurting? Could the vet have cut them too short (he did try and compare to them to one of our other piggies)? What can i do to encourage her to eat? Is there something i can give by hand (soaked pellets)? Please help as she is so thin and I feel terrible.

Answer
Hello Sarah!
Well I think your piggy will eat in time, but this is only and educated guess. I can give you two recipes for hand-fed food (below, for both you need a guinea pig syringe that you can get from a vet) and I suggest cutting the food smaller and giving her more watery vegetables, as this worked for me while I nursed back a rescue guinea pig at the local shelter.
PELLET MASH
Soak 5-7 pellets in a small dish of warm water for a half hour.
Replace warm water and microwave for 7 seconds. Or heat on low in saucepan for 1 minute.
Mash pellets until liquid, adding more water if necessary.
Put in syringe and gently and slowly release into guinea pigs mouth, .1 at a time.
Do not force the guinea pig to accept it.
VEGETABLE MASH.
Soak 5-7 small chunks of lettuce in a small dish of hot water for a 15 mins.
Replace water with tap cold water and microwave for 7 seconds. Or heat on low in saucepan for 1 minute.
Mash lettuce until liquid, blender it if necessary.
Put in syringe and gently and slowly release into guinea pigs mouth, .1 at a time.
Do not force the guinea pig to accept it.
(PS: It took me a failed attempt before I could get this one right, but the guinea pig liked it more)