Your symptoms suggest a common cold or environmental allergies. For the sneezing, an over-the-counter antihistamine like cetirizine or loratadine can provide relief. For the cough, a cough suppressant like dextromethorphan is helpful if it is dry, while an expectorant like guaifenesin can help if you are coughing up mucus. Staying well-hydrated and using saline nasal sprays will also help soothe your airways. These symptoms are very common and typically improve with rest. However, if you experience shortness of breath, high fever, or if symptoms do not improve after a week, please consult a doctor for a physical examination.

To help her feel more comfortable, you can give paracetamol to safely lower her fever, ensuring you follow the correct dosage for her age and weight. For the dry cough and chest congestion, keeping her well-hydrated with warm fluids and using steam inhalation can help soothe her airways. Please avoid giving any antibiotics or over-the-counter cough syrups without a doctor's guidance. I highly recommend consulting a healthcare professional for a proper physical examination to get an accurate diagnosis and ensure she receives the right care.