Treatment for your sniffles will vary based on the cause. If you have a cold, the virus will typically run its course ina week to 10 days. Your sniffles should clear up in that time, too. If you need help managing the sniffles to make you more comfortable, there are a variety of OTC...
However, if your allergic reaction is more severe, antihistamines alone, even in larger doses than stated on the packet,may be insufficientto fully control symptoms, and a variety of nasal sprays may have to be added to the treatment. Why do we need to differentiate viral from allergic causes?