We started training dd1 (3.5) over a year ago, she's generally been fine with weeing but pooing always been a problem. We went on holiday in the summer for a week, and while away and after she was briliant, no wet or pooey pants for over 3 weeks, thought we'd cracked it! But since then, she's regressed totally, we're getting through about 4 pairs of pants a day, and it's completely deliberate - she'll sit on the toilet for ages, only to get off and wee/poo in her pants almost straight away or she'll stand and look us straight in the eye while she does it, she's completely aware of what she's doing, and will say she's done it because she wants to make mummy & daddy angry/sad. My husband looks after her & sister while I work, and he's at his wits' end. No amount of being angry / not being angry / ignoring etc makes any difference. Husband last week took her to the GP, they asked for wee sample but I don't know what to expect from that. She said the HV would be in touch, but nothing.
What do we do, what could we expect the GP to do? Am out of ideas, and really down about it as it's really affecting our family life, it's the most stressful thing I've ever done!