There are a handful of resources and even videos about how to tape your toes in a plantar flexed position to help you heal from a plantar plate tear. I have developed a better method than anything I’ve seen on the internet and I’m going to show you that here!
First of all taping your toes is one of the best conservative treatment options you have. If you have had a tear in your plantar plate, it is advisable to keep up a tape practice for…….. ever. Taping your toes is a way to keep your metatarsals in a plantar flexed position (down). This is extremely helpful for a few reasons. First, it shortens the ligaments that make up your plantar plate. This prevents them from being overstretched and damaged further. Second, it allows your toes to make more purchase with the ground. A lot of these types of injuries create hammertoes and claw toes. Both of these end up having part of the toe raised off the ground. This puts extra unwanted pressure on other areas of the foot……….. usually the plantar plate!!
You will find some resources on ribbon taping. I’m all about it. How I do it differently is that I take the ribbon all the way around to the top of the foot and have it cross over. This keeps the tape on longer and gives you a better hold. If you do normal ribbon taping and leave the ends on the sole of your foot it will peel off quickly. Annoying.
The amount of pressure that you pull on the tape is one of the most difficult things to figure out. Too loose and it isn’t actually pulling your toe down. Too tight and your toes turn purple and it gets uncomfortable fast! You just have to play with this and find that sweet spot. I recommend the 1 inch leukotape variety. Stuff is awesome and the PERFECT size.
I would try to leave a taping on for as long as it is still doing its job. You’ll notice as it loses its strength.
Another pro tip is to tape more than one toe. This will do a WAY better job of actually putting those plantar plate ligaments in a position to heal and it makes it more comfortable on all your toes. Generally if you are having these issues you will have more than one toe that is raised. Plantar plate tears impact the 2nd and 3rd metatarsals more than any other so some combination involving those toes is usually most appropriate.
Underneath view 
Over the top ribbon taping for plantar plate tear 