If you are purchasing for a family of 6 that all get colds within a short timeframe the limit can get annoying. Well actually it's the per-visit limit. You can

If you are purchasing for a family of 6 that all get colds within a short timeframe the limit can get annoying. Well actually it's the per-visit limit. You can only buy like two boxes at one time even though you can come back the next day and buy some more.