Dear All, Just a quick note to thank you all very much for your helpful advice and input. I didn't take the antibiotics after all - I had been so concerned because I am pregnant. Following all your comments, and the advice of Rachel who leads my local Arnica group which I attended yesterday, I got in touch with my homeopath again and she prescribed something different for my acute sinusitis which seems to have had an immediate effect!
The Arnica organization is a wonderful thing and I have just made a donation! Thanks again for all your support.
Best wishes, Virginia