Talk to Pediatrician on Loose Motion

mera beta 8 mnths ka hai..weight is 9 kg....aftr 40 days usy formula milk bnd kr dia tha or fresh milk lga dia tha us mein thora pani mix kr k dety hain...now the prblm is...abi tk usy pani mix kr k hi dodh dia ja rha ha...jb pani km mix kron ya na mix kron to usy loose motion lg jaty hain after evry feed wo loose motion krta ha or rashes ho jaty hain...baqi dairy prdcts oats custrd rice shake etc usy hzm ho jaty hain...lkn pure milk hzm nai hota....iska koi sltn hai kb tk usy pani wala dodh dia jaye??? ya koi mdcn syrup jis sy usy pure milk suit kr jaye????