Did you change pharmacies? Ours is very salty but they add a flavour to ours which makes it tolerable, I have tried one that had no flavouring and it was foul, I would have spat it out too.

The flavour though makes it less stable.

It is not ideal to mix in a bottle, for two reasons, one if she does not drink it all she isn't getting the whole amount.

The other is if you start adding it to the bottle, it may change the taste and she may stop wanting to drink the milk cause she associates it with the taste of the med, even without the med in it, it will be hard for her to realise that there is no 'bad taste' anymore.

With giving the med, if they are fussy about it, you can put them on a change table, hold her arms with your forearm, and with your hands squeeze her cheeks, then with the other hand administer it, if you get a small syringe like a 1ml syringe you can get it quite far back and trickle it in. Generally if you can get it in for a little while, then they do get used to it again.

The other idea would be to split it am and pm so there is less to give.

If she takes a dummy, you could also get one of those medicine dummies, she may suck it down before she realises it has meds in it.