The use of plants for medicinal purposes for the treatment of diseases is an approach used for many years in a popular way, through teas and other preparations. Based on the promising results that these plants can provide, today there are already several studies and studies that prove the efficacy in the treatments of various diseases through phytotherapy. This study aims to evaluate the use of phytotherapy as an adjunct treatment for asthma symptoms and to point out the problems arising from the lack of information on herbal treatment in general. The data were obtained through a field research conducted at the unifeso pneumopediatric outpatient clinic with the guardians of children with asthma. After a critical literature review, it was evaluated whether the species used have scientific evidence for the expected pharmacotherapeutic activities or whether they are used only based on reports based on popular knowledge. Through this research it was observed that in fact the most used species can promote the relief of asthma symptoms.