I would like to respond and explain the meaning of the studies I described.

Sinus irritation and inflammation after radiation treatment does not mean that there is a bacterial infection there. However there can also be a bacterial infection which than may require antibiotic treatment.

The studies I referred to describe the bacteria that caused the sinusitis. This new information offer information that can help in the choice of antibiotics. If anyone has sinus infection and had received radiation treatment in the past they may want to inform their doctors about these studies.

Itzhak Brook MD