If you have pets, decrease the dander by banning pets from the bedroom and wash pets once a week since they bring in all sorts of stuff. Some people get them year round, and people with asthma can have allergies triggered not by allergens but by physical stimuli such as cold and exercise. This is especially important for parents who might send their child out to play in the winter. The cold air could trigger the sneezing and wheezing. So a scarf might help to warm up the air for the child.
Antihistamines can tame coughs, itchy eyes and sneezes.
However, most cause drowsiness. You might also want to use a decongestant to clear yourself up. Also, the more you use the drug, the less effective they get over time. If your allergies are persistent, ask your doctor for a nonsedating antihistamine like Allegra, Claritin, or Zyrtec. Other alternatives include a nasal steroid spray such as Flonase or Nasonex.