i don't think you gave him too much medicine but i have to ask why you gave him benadryl for his lips. he may have swollen lips because of an irritation or possibly due to dehydration. you want to be very careful when using medications in children this young; they are not "little adults. ”
my 3-year-old is taking tamiflu and i gave him benadryl because his lips were swollen. did i give him too much medicine? . i have given him 1/2 teaspoon of benadryl and he also has taken 1 teaspoon of tylenol for his fever.