The instruction telling you when to call has a measuring method built into the sentence, which is why the number on your thermometer is only a number when the method behind it matches your baby’s age.
A rash that ignored days of the right care is usually a different rash. Where it lives tells you which one, and when it is time to call your baby’s doctor.
Sponge baths only until the umbilical stump falls off. What those two weeks actually look like, where in the house you do it, and what happens the first time the tub is allowed.
No alcohol, no bandage, and the diaper folded down below it. What the AAP and the NHS actually ask you to do, what is normal as it dries, and when it is a call.
The AAP says no to teething gels, frozen teethers, amber necklaces and homeopathic tablets. What it recommends instead, and the 101F line that matters.