Shower please?

I sit next to him and the odor is less than appealing, his feet are black with filth, his hands--oh dear lord his hands-- his hair is so stiff from dirt, I itch just being in the same zip code and I don't know what to do! How do I get him to look after his basic needs? how do I let him know it's safe to wash, get food and drink from the fridge, change his clothes? It's been over three months and and I'm at a loss--
Any suggestions?

I wonder what it's like in his head?

Ca you imagine being scared--scared of everything? Words, water, voices, radios, television, food, drink--they all are something Mike is scared of~ He is even afraid of his video games!What can I do to assure him that the everyday things, the stuff we do without even thinking about them are ok? I don't know...I hate watching him go on like this; this is not living!