Recurrent Respiratory Tract Infection (RRTI) is a common respiratory disease in children, with an incidence rate of around 20% in recent years. The frequent occurrences cause significant psychological and physical burdens on both children and parents. Previously, the commonly used method was to use large amounts of antibiotics and antiviral drugs for long periods and repeatedly, targeting the source of infection, which made it difficult for children to recover. Recurrent upper respiratory tract infections seriously harm children's health and growth. The pathogenesis of recurrent respiratory tract infections is complex and involves multiple factors. Most researchers believe that it is mainly related to low or deficient immune function.Sodium Carboxymethyl Starch

　　Sodium Carboxymethyl StarchIt is a derivative of starch, generally used at 2%-8%, with excellent compressibility and flowability, facilitating the filling of powders or capsule powders. This product has good disintegration properties and can absorb water and expand rapidly. Adding this product to tablets allows for rapid water absorption and disintegration, significantly shortening the disintegration time, especially suitable for preparing water-insoluble drugs. This product is mainly used as a disintegrant for tablets, capsules, granules, and pills, and as a suspending agent for liquid preparations. It can be added internally, externally, or both.Sodium Carboxymethyl StarchWith moderate viscosity, it can be made into a paste with cold water. It can increase tablet hardness without affecting disintegration, improving drug dissolution and bioavailability. It has good water absorption, expansion, and compressibility, improving the formability of tablets and increasing tablet hardness without affecting its disintegration. Sodium carboxymethyl starch can increase the size of the body's immune organs (thymus) and increase the number of cells; selectively stimulate T cells, promoting T cell maturation and differentiation; promote lymphocyte transformation, increase the absolute lymphocyte count; increase plasma IgA and IgG concentrations, thereby improving the body's immunity, reducing the number and duration of recurrent upper respiratory tract infections in children, and reducing the harm of the disease to children's health and growth,Sodium Carboxymethyl StarchIt can also reduce plasma IgM levels and reduce basophil content, reducing the sensitization reaction related to asthma pathogenesis caused by the binding of receptors on basophils and IgE, thus also reducing bronchial asthma induced by recurrent upper respiratory tract infections in children. Therefore, sodium carboxymethyl starch solution is an immunostimulant that can stimulate the activity of immune cells, increase antibody levels, and increase resistance.