infant....close tears- channel

Maja,11 months,dark-blond hair,blue eyes,shy,lovely,smiles a lot,crying only when hungry or when she has pain,sleeping a lot (12hours),she has often sweaty head,eating well and willingly,she has allergy for sourish things,she cant eat fruits except banana,since she was born she had pussy,watery eyes,since 5 months right eye was getting better and better and now is ok, we have still problem with left eyes,all the time tears coming out,sometimes a little bit yellow puss,at the morning she has often problem to open eyes becasue its sticky becasue of puss.Tears are coming out all the time but even more quickly when she has contact with sun or wind,the eye is a little bit swollen but not red.
We were using silicea 9 CH 1 granul every day during 3 days and in 2 weeks we repeated this treatment.The result was in these two treatments the same ,during giving silicea the puss was coimng out a lot,more then normally and we were thinking its good that its cleaning like that.But after treatment the problem was not solved.The eye is still full of tears and sometimes of puss.
The oculist said that it can be close trears-channel and maybe the operation will be needed.I really want to avoid it.Please,can somebody help my doughter.