Hi Dear
Thanx for the query.
There is no problem with the weaning you have started. but should be kept always strictly in a hygienic way. You should gradually increase the different eatable things.
since your child has never received breast milk so there is possibility of increase susceptibility of acquiring infections. This may be the possible cause of cough etc
Thanks

your baby is reaching the age where weaning can be started.so no problem give different types of foods to your baby but all should be semisolid and easily digestible.he doesnt have teeth at present to chew.try to stop bottle feeding and give by bowl and spoon as it is easy to clean bowl and spoon more properly thn bottle.morever bottle feeding presdisposes baby to infections.be sure changing flavour can not cause cough and if your child has cough thn its going to be some other reason.dont stop milk all together continue milk atleast two times a day.