Watch out for important symptoms If you develop any of these symptoms after you start taking Lamictal, get a doctor’ s help straight away: • an unusual skin reaction, such as redness or rashes • a sore mouth or eyes • a high temperature (fever), flu-like symptoms or drowsiness • swelling around your face, or swollen glands in your neck, armpit or groin • unexpected bleeding or bruising, or your fingers turning blue • a sore throat, or more infections (such as colds) than usual.