Nasal steroid sprays (corticosteroid sprays) are typically used to treat hay fever (allergic rhinitis) and vasomoter rhinitis (non-allergic rhinitis). The symptoms of a cold can produce the same inflammation in the nasal passages, so nasal steroid sprays can be an effective treatment for reducing the inflammation due to a cold virus. Various brands of of nasal steroid sprays include fluticasone (Flonase), mometasone (Nasonex), flunisolide (Nasarel), triamcinolone (Nasacort AQ), beclomethasone (Beconase AQ), ciclesonide (Omnaris) and budesonide (Rhinocort Aqua).
This treatment is sometimes used, mainly in cases where symptoms are severe and not helped by other treatments. It is done using a series of injections of the allergen causing the rhinitis, in increasing quantities. The idea is that your immune system will become desensitised to the allergen. This means that the allergic response that your body mounts when it is exposed to the allergen in the future is reduced, so improving your symptoms. Another technique is being developed which involves placing the allergen under the tongue. However, this may not yet be widely available.