B.C.
My son had pneumonia at 14 months old. He had to take one medicine with a nebulizer (breathe the medicine as a mist) and other medications as well. Albuterol is a bronchodilator. The Dr would not prescribe it unless he thought your daughter was having trouble breathing. If the excess saliva gets into her lungs, she can have a secondary bacterial infection and end up with pneumonia too.
"Asthma is the most common serious chronic childhood disease, and it's the third most frequent cause of hospitalization in children under 15 years of age. Asthma affects 6.5 million children in the United States today. Fifty to 80 percent of children with asthma develop symptoms before they're 5 years old."
She's not too young to have asthma. Take her to a pediatric allergist for a second opinion, but you're asking for trouble if she seizes up and can't breathe and you are not prepared to help her.