Used deck cleaner on deck, open air environment for about two hours but didn't use mask -- came inside home and realized the effects (sense of smell gone; burning throat). I did a nasal rinse/gargled the first two days afterward. Saw physician--he seemed to think it was all in my sinus area and not lungs. It's been a week and although most of symptoms have subsided, there is still a slight throat irritation. Would taking a dose of Claritin help? How much time should I give before consulting a ENT?