I have the same problems and use claritin D to help. The reverse blocks are really painfull though and can occur when using any kind of decongestant to dive with. Afrdrine is also good to have with you. If you are an allergy sufferer the best way to deal with these problems is to have multiple remedies on hand at all times and be ready to switch if one is not working. I have noticed that the people that say you shouldn’t use these to go diving are also people that do not have problems with sinuses like some of us. One thing that really helps is flushing the sinus using a Neti pot. The spray mists do not compare to a good flush with a Neti pot. Tiger Balm applied before a dive to the area at the bridge of the nose and forehead seems to help a little as well; carefull not to let sweat carry it into your eyes though because it really stings a lot. Very slow decents will also help because if you wait till it hurts then it is adding to the problem the same way as with ears. I will often take double dose of the claritin two hours before diving to avoid these problems. Also staying really hydrated is important. Hope this helps and tell your husband I literally feel his pain.