How to give a 15month old medicines?

My baby has a stuffy nose and a cough. I’m trying to give her a saline nasal spray and some baby Calpol and she’s actively refusing.

I’ve tried giving her the spray to hold, see, explore, investigate, play with. I’ve even pretended to use on myself and she’s laughed, but when I try to use it on her, she screams and cries with big tears rolling down her chubby cheeks.

she loves taking her vitamin d drops so I’ve disguised the Calpol in that bottle, but she spits out the Calpol. I’ve tried dipping some of her finger food snacks in it and then giving to her but she knows and spits out the food then. I’ve tried a small tiny spoon, but same thing. I’ve tried to give her by dipping my finger in the Calpol and giving her that way, even if it takes half an hour in this slow way, but still no luck.

She’s struggling and crying because of the “illness” but won’t let me help her. I’m going to bathe her in a moment to help clear up the sinuses but Is this the solution any time this happens? And what do I do for her cold?