Mixing CDS Plus and a carrier Oil: Ratio?

MMS is our Friend wrote:

Hi CLO2,

I put some of the CDS and 70% DMSO in two separate small dark glass 2oz spray bottles which are like these:

www.specialtybottle.com/glass-bottles/amber-boston-rounds/2oz-atomizer-bra2ab?utm_source=bing&utm_medium=cpc&utm_campaign=SE%20TEST%20Shopping&utm_term=4581458815003140&utm_content=Ad%20group%20%231

Question: Inside the spray bottles are the hard plastic hose to the top. Will the DMSO "pull" any of the plastic out if the DMSO is kept in this 2oz spray bottle and that in turn would be sprayed onto my wife's skin?

I am asking since I've read that DMSO needs to be applied with clean hands and/or clean Q-tips or cotton as to not mix it with anything else.

Thank you in advance !

Karl