GERD in Infant and post partum depression in mother

My cousin had twins last week. The boy was spitting up milk constantly, diagnosed with GERD. Gave muriatic acid. We added one drop in milk bottle. In 2 days GERD stopped and he started drinking milk.

Mother got postpartum depression with crying bouts, and reduced breast milk secretion. Gave her homeopathy Pulsatilla. In 2 days her crying stopped and milk secretion is increasing by 20 ml everyday .