Please help me with my kitten!

Question
So, I found a 3 week old kitten about 1 1/2 weeks ago. I took her right to the vet. She was dewormed and weighed about 7 ozs. very tiny. She was covered in fleas and the vet gave her some flea medicine. That night after I woke up she had pooped out worms. Which was expected.  She had an appointment 1 week after that which was on 8/31/05. I took her in and she gained 3ozs. Everything seemed fined he dewormed her again and found another fecal parasite don't remember what name was but the medication I am giving her is Albon Susp. 5% give her .2cc a day for 21 days. She was eatting kitten formula mixed with wet food. Then the vet said take her off the milk and just stick to wet food for a couple days then get her eatting dry food with water. So she has been eatting Iams (kitten) wet food. Then I saw some other Kitten Iams food with gravy (kinda like wet but chunky). So I mixed that with her wet food and she has been having the diarrhea with kinda mucasy discharge and her butt is all swollen. I stoped giving her the gravy food and now she is on just dry food mixed with water. She has had it for 2 days now. The diarrhea has gotten a little better. I just want some advice. Is it normal for this to happen?
Thank you so much,
Anna

Answer
Hi Anna!
Congrats on your new addition!
Yes, experiencing diarrhea after an abrupt food change is very common.
Because of her obvious discomfort and irritation, I would suggest to boil some chicken (boneless and skinless) adding NO salt or spices.  Shred the chicken and feed her this for a few days.  The chicken will give her stomach a rest and is very bland and easy for the digestive system to digest.
Feed this in the amount and quantities she is usually fed.
After 1-2 days of this diet, begin to mix the chicken with just a tiny amount of her normal kitten food.  Each feeding, increase the amount of her normal kitten food, until she is completely weaned back on to the normal food.
This will help avoid any further stomach upset.
If during this time you ever notice your cat experiencing weakness or lethargy, vomiting, a proplapsed rectum (where the rectum literally turns inside out), continued diarrhea, take your kitten to your veterinarian for medical treatment, as these symptoms indicate dehydration and intestinal trauma.
If you notice any small amounts of blood in the diarrhea, don't panic.  Diarrhea does cause major irritation on the tissue of the colon and it is common, after days of diarrhea, for there to be a small amount/droplets of blood in the feces.  If you see large quantities of blood, this would obviously be reason of concern and should be acknowledged by your veterinarian promptly.
I hope this is helpful and if you have any other questions or concerns, please don't hesitate to contact me!
Hilary