our 16wk jack spaniel cross gets very travel sick. hes harnessed in the back of the car. after quarter of a mile or less poo & sick !!!!! have been taking him in the car daily just down the road trying to get him used to traveling also advised to use newspaper to no avail. we have had him 3 weeks now and hoping to take him camping in the better weather ha ha. need advice urgently. TRAPPED. even no walkies only just had last jab