I always recommend getting a test spot done prior to doing the whole face. The Excel V is generally a very safe device but it's entirely dependent on who's operating the laser. Make sure you are seeing a board-certified dermatologist or plastic surgeon. Good luck!
There is absolutely no risk to your fillers or Botox with the Excel V laser. There are several peer reviewed papers supporting this. The HA fillers from Restylane are heated to 120 C for 15 minutes to sterilize them. The heat from the laser is less than 100 C and only milliseconds. Also, Botox...
There is no problem with undergoing laser procedures when breast feeding. There is no affect on your breast milk. The Excel V laser is an excellent choice for diffuse redness and telangiectasias.