Child asthma risk linked to antibiotic use in third trimester of pregnancy Prescribing antibiotics to women in their third trimester of pregnancy could increase the risk of their children developing asthma, warn researchers. by David Millett Sign in to continue Sign In Email address Password Stay signed in Trouble signing in? Reset password: Click here Need help? Email us Register FREE Limited free articles a month Free email bulletins Register Now Register Now Take a 30-day trial Join MIMS now and pay nothing for the first 30 days Join GPOnline now and pay nothing for the first 30 days Sign Up Sign Up