It is best used as a long term remedy and many people start taking it about 4 - 6 weeks before allergy season to help prevent allergy symptoms. (wellnessmama.com)
But CO2 emission isn't a problem and if could be problem in future it doesn't need a short term remedy. (judithcurry.com)
Similarly, some customers may have to suffer some load management experiences, whilst some may not be able to benefit from the short - term remedies at all.» (citifmonline.com)