I had Botox one week ago and now appear to have a v shaped on my forehead. Will this soften or is more Botox required? (photo)

The v-shape is due to prominence of muscles that will likely need additional units of botox.  It may improve slightly over the next few days as full effect of botox is about 2 weeks.   But I would set up a return visit for a touch-up.

If the results are perfect at 2 weeks following a Botox treatment you may need a touch up.  This is an easy and inexpensive thing and ensures that you will love your Botox!