My little one lost his umbilical cord at 2 weeks and since then his tummy button has continued to weep a little bit each day, there is always some discharge on the inside of his top. I have been keeping it clean with a bit of cotton wool and cooled boiled water from the kettle. There is no redness, heat, swelling, or smell but this morning it looked like there was some pus which came out. Is this normal or should he see a gp/hv?