I think Raisin has coccidiosis

Raisin has had quite bad diahoeaa recently and i am bit concerened it is coccidiosis. I know i shouldn't jump to conclusions but i am worried about him. When i go in he is always lying down when he usually jumps up, he then moves to play and he has produced a really sludgy bad odourus pellet. I am quite concerened about him please help with any advice!