No longer entitled to Dla

Hi all not been on for a while. I'm in need of some advice sent forms in to claim for Dla again for Phoebe, wrote everything down but not allowed it on the basis of the letter I sent that said she had no active arthiritis at the moment. Do I dispute the decision or leave it? She is due to see Dr wood next week where I am thinking of asking him to change her meds as for the last couple of month she seems to be getting poorly a lot more. Even though I hide her tablets in a drink she dosen't always drink it usually takes a couple of mouthfuls then leaves the rest.

Thanks Michelle A xx