It sounds like your dog may benefit from being hospitalized, and put on IV fluids to help his hydration, administer the antibiotics IV, and to ensure that he starts to recover.
1	It	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	2	expl	2:expl	_
2	sounds	sound	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	0	root	0:root	_
3	like	like	SCONJ	IN	_	7	mark	7:mark	_
4	your	your	PRON	PRP$	Case=Gen|Person=2|Poss=Yes|PronType=Prs	5	nmod:poss	5:nmod:poss	_
5	dog	dog	NOUN	NN	Number=Sing	7	nsubj	7:nsubj	_
6	may	may	AUX	MD	VerbForm=Fin	7	aux	7:aux	_
7	benefit	benefit	VERB	VB	VerbForm=Inf	2	advcl	2:advcl:like	_
8	from	from	SCONJ	IN	_	10	mark	10:mark	_
9	being	be	AUX	VBG	VerbForm=Ger	10	aux:pass	10:aux:pass	_
10	hospitalized	hospitalize	VERB	VBN	Tense=Past|VerbForm=Part|Voice=Pass	7	advcl	7:advcl:from	SpaceAfter=No
11	,	,	PUNCT	,	_	13	punct	13:punct	_
12	and	and	CCONJ	CC	_	13	cc	13:cc	_
13	put	put	VERB	VBN	Tense=Past|VerbForm=Part	10	conj	7:advcl:from|10:conj:and	_
14	on	on	ADP	IN	_	16	case	16:case	_
15	IV	iv	NOUN	NN	Number=Sing	16	compound	16:compound	_
16	fluids	fluid	NOUN	NNS	Number=Plur	13	obl	13:obl:on	_
17	to	to	PART	TO	_	18	mark	18:mark	_
18	help	help	VERB	VB	VerbForm=Inf	10	advcl	10:advcl:to	_
19	his	his	PRON	PRP$	Case=Gen|Gender=Masc|Number=Sing|Person=3|Poss=Yes|PronType=Prs	20	nmod:poss	20:nmod:poss	_
20	hydration	hydration	NOUN	NN	Number=Sing	18	obj	18:obj	SpaceAfter=No
21	,	,	PUNCT	,	_	22	punct	22:punct	_
22	administer	administer	VERB	VB	VerbForm=Inf	18	conj	10:advcl:to|18:conj:and	_
23	the	the	DET	DT	Definite=Def|PronType=Art	25	det	25:det	_
24	antibiotics	antibiotic	NOUN	NNS	Number=Plur	25	compound	25:compound	_
25	IV	iv	NOUN	NN	Number=Sing	22	obj	22:obj	SpaceAfter=No
26	,	,	PUNCT	,	_	29	punct	29:punct	_
27	and	and	CCONJ	CC	_	29	cc	29:cc	_
28	to	to	PART	TO	_	29	mark	29:mark	_
29	ensure	ensure	VERB	VB	VerbForm=Inf	18	conj	10:advcl:to|18:conj:and	_
30	that	that	SCONJ	IN	_	32	mark	32:mark	_
31	he	he	PRON	PRP	Case=Nom|Gender=Masc|Number=Sing|Person=3|PronType=Prs	32	nsubj	32:nsubj|34:nsubj:xsubj	_
32	starts	start	VERB	VBZ	Mood=Ind|Number=Sing|Person=3|Tense=Pres|VerbForm=Fin	29	ccomp	29:ccomp	_
33	to	to	PART	TO	_	34	mark	34:mark	_
34	recover	recover	VERB	VB	VerbForm=Inf	32	xcomp	32:xcomp	SpaceAfter=No
35	.	.	PUNCT	.	_	2	punct	2:punct	_
