Severe morning sneezing with watery discharge is commonly due to allergic rhinitis, often triggered by exposure to dust or bedding. Try to keep your bedroom clean, wash pillow covers regularly and avoid direct contact with dust. Steam inhalation and saline nasal rinsing can help clear the nose and reduce irritation. Since tablets like cetirizine are not giving lasting relief, your condition may need a different approach. Consult your doctor for proper evaluation and long-term management.