Firstly,stop bottle feeding,that's one of the commonest cause of mouth infections.
Give just 2 milk feeds using a glass and 4 solid meals.
Use orasep lotion just before meals for the ulcers.
She probably has diaper rash,apply rashfree cream twice a day for 5 days,avoid diaper unless essential or unavoidable.
Answered2018-01-16 03:49:42
Let others know if this answer was helpful