Tropicals & Tender Perennials: what do I do?, 1 by MG99

MG99 wrote:
This pink has had so much trouble with spider mites. I've sprayed with hot water. I've soaked it in the tub about 1.5 weeks ago with hot water and soap. I've used Eco-oil, I've used the H2O2/dish soap/MG mix from maviarose, I've used this end-all miticide. The things just keep coming back. It's to the point where over 1/2 of the leaves have dropped off and most of the remaining leaves are looking like they too will drop. It's still blooming.


My question...

Should I cut off a couple of cuttings, get and keep them free of spider mites, incase the whole plant is going to die because of the spider mites. Should I wait to see what happens? What would you, the experienced and knowlegable brug growers do if it were yours?