Talk to Pediatrician on Peads Urologist

Aslam o alikum my son is 4 months old. Kya m usy kch khilana start kr skti hun? Jb wo peda owa to left kidney m swelling thi.dr ny koi medicine ni di k thk o jy ga after 3 months again check krwain. Phr jb 3 mnth ka. Owa to check krwya again swelling ai but Dr ny kaha k bs bilkul mamoli c hy swelling itne ni k nuqsan dy. J b yh 6 mnths ka o jy again check krwain. To m is wja sy is kch b ni dy ri sirf formula milk and mother feed. Lakin ghr waly khty ab isy solids dena start krn like banana cerelac waghera. To m kidney swelling ki wja sy pryshn rhti is wja sy Dr sy mshwra krna chah ri k kch purees bna k isy dn ya ni plz guide