Please excuse the Christmas nickname, very busy new mum here 
So my lovely daughter did a massive runny breastfed poo that leaked onto her nappy wrap (motherease rikki) and now, having been through the washing machine, there are still yellow bits of poo stuck to the velcro tab and now they've dried on... any advice on how to get these off? I've tried rubbing and attacking with a comb and still no luck!