It is possible that the user is suffering from seasonal allergies, which may explain why cold products are not working effectively. It is recommended to first try non-pharmacological measures such as using saline solutions to clean the nasal passages and avoiding allergens by keeping windows closed and changing clothes after being outside. Additionally, an antihistamine and nasal corticosteroid spray may be beneficial in reducing congestion and runny nose. These can be obtained at a pharmacy without a prescription but will be kept behind the counter. It is also suggested to consult with a pharmacist for personalized advice.