-Blisters: Blisters develop because of increased friction (or rubbing) to a specific area. To avoid blisters- do not wear new shoes for long days of conventions, tournament days, or even a long shift at work. For instance, If you dance barefoot for extended periods, calluses will build up preventing the blisters. Calluses build up for a reason and toughen the skin on areas you need and use most. 

How to treat:  Make sure your shoe is the proper fit-specifically shoes that you're wearing most often. It may take some tweaking to find the correct shoe for your foot. If you continue participating in a shoe that does not fit, you may develop a blister. Some get rid of blisters by  lancing it with a sterile needle to relieve pain and pressure. If you do not feel comfortable doing this, make sure to cover your blister so if it unexpectedly breaks up, you will be at less risk for infection. Always make sure the area does not become infected and apply antibiotic ointment until the blister is healed. Try to locate problem areas so you can prevent it in the future.  See your podiatrist or MD if problems persist. 

-Weakened arch: A weak lateral (outside border of foot) will lead to sickling and supination; a weak medial (inside border of foot) longitudinal arch will lead to excessive pronation, or falling of the arch.  The arch is essential for proper stability and balance, especially seen en releve for dancers.  A problem with the arch can lead to problems with alignment which can lead to more serious injuries.

How to treat:  Low-dye taping works for immediate relief from a fallen arch.  This is not a permanent solution but custom orthotics for walking may be in your future.  For long-term benefit, strengthen the muscles that support the arch.  Specific exercises to start on both feet include:  1) Toe pick-ups:  You can use a towel or small pieces of theraband tied in knots and push heel into floor while picking up towel or theraband with your toes and close your feet into parallel first position.  Repeat 3 sets of 15. 2)  Dome exercise:  Bring the toes of your right foot toward your right heel creating a dome.  Hold for 3 seconds and slide toes back to original position.  Repeat 3 sets of 15.

3)  Castanet exercise:  Alternate tapping of great toe with 4 remaining toes, like to the beat of a drum.  Repeat 3 sets of 15. 4)  Roll ups/downs:  Like the 'wave', roll from your great toe to small toe and reverse.  Repeat 3 sets of 15.