Thanks ladies...have done some internet searching...seems that there is very little hard scientific fact on why it is not recommended and nothing to show any direct problems to babies as a result of use...though admittedly little study either.
I have to admit that given chemist is now shut, I may just use the teeny tiniest amount to try and stop it spreading. I do get particularly bad ones... will then go and chat to pharmacist in morning.
Acyclovir ( zovirax and a couple fo other creams) )is generally considered safe for women to take when pregnant. In animal studies that looked at the effects of Zovirax during pregnancy, the drug did not cause any problems, but it hasn't been studied properly for effects on pregnant women. I was told by my OB that it's fine to use, I used a couple of times and then decided not too use for the rest of the pg if I don't feel that the outbreak would be too bad or if I don't have anything important coming up. But I recon you being miserable may be worse for the baby than a bit of zovirax on your lip. X
this is much better than zovirax I find. Says to speak to your GP before you use it though according to that link. But it really does stop the CS within 24/48 hours and I get the big blistery type that spead everywhere very very regularly.
I took acyclovir while pregnant with ds1 and ds2. I read that they had done a faur amount of research on the safety of it during pregnancy as there was a strong likelihood of women taking it before they knew they were pregnant.