The best protection against a spell is to not to believe in them. It is as simple as that.
The best protection against STI, is by use of a condom, or total abstinence.
Voodoo only works if you believe in it. The best way to protect yourself is to educate yourself about it. Once you learn that it depends on your own fear to work (it has no power on its own) you are well on the way. Or, just don't worry about it at all. See the link below for more information.
The best way to protect against accidental data loss is to back-up your data frequently.
The best way to protect against calloused hands is to wear gloves.
Stay observant
protect
radiation
Radiation
radiation
Radiation
One of the best ways to protect yourself from Pneumonia is to get a flu shot since the flu is a common cause of Pneumonia. Another way to try to protect yourself from Pneuumonia is to get vaccinated for Pneumococcal Pneumonia.