A 14-month-old baby presents with symptoms of nasal congestion, coughing with mucus, hoarseness, low fever (mostly at night), and crying upon waking, which began on the 28th day of the lunar calendar. Laboratory tests show slightly elevated blood counts, and the doctor diagnoses the baby with viral rhinitis and acute laryngitis. Medications prescribed include Anlin granules, ceftriaxone suspension, amoxicillin suspension (for children), and a spray for sore throat. However, the effectiveness of these treatments seems to be lacking. Please provide treatment recommendations.