mY SON, AGE 56, HAS ARCHNOIDITIS and today is experiencing a lot of burning, stinging and some sharp jabbing pains in his feet..he is on a lot of medication but today it isn t helping much. His entire nervous system is compromised after 4 back surgeries. I recently bought from Amazon DMSO (99.995% pure pharma Grade) but it arrived with NO instructions for its use..could you help me? I m not looking for a cure as there is none, but if DMSO might give him some temporary relief from the above mentioned painful issues, that would be a blessing. Thank you.