Poor DD3 (4months) has been diagnosed with mild pertussis (whooping cough). The doctor's advice was to leave it alone as antibiotics wouldn't be as effective because she's had the cough for "so long". We're abroad and the GP's attitude here is to leave things well alone, but after looking at NHS Direct, I'm beginning to wonder if I should get her on the antibiotics. I know it won't cure the cough, but the thought of it developing into something worse is quite scary. She hasn't had all her vaccinations either - still got one to go. Any advice?