WARNING – Van Gelder Frequencies Precautions. Please read!

13 /          This frequency should not be used when there is any injury anywhere on the body more recent than 6 weeks.
51/           This frequency should not be used when there is any injury anywhere on the body more recent than 6 weeks.
58 /         This frequency should not be used when there is any injury anywhere on the body more recent than 6 weeks.
3 /            This frequency should not be used when there is any injury anywhere on the body more recent than 6 weeks.
40 / 116   Do not use this frequency anywhere on the body when there is an infection anywhere on the body.
40 / 116   If this frequency causes an increase in pain, check and treat for infection.
40 /          If this frequency causes an increase in pain, check and treat for infection.

81 / 23    DO NOT use this frequency combination. It may cause unwanted side effects.
81 / 17     DO NOT use this frequency combination. It may cause unwanted side effects.
81 / 64    DO NOT use this frequency combination. It may cause unwanted side effects.
81 / 89    DO NOT use this frequency combination. It may cause unwanted side effects.
81 / 71     Do NOT use this frequency combination for more than 4 minutes. It may cause unwanted side effects.
284 / 79  DO NOT use this frequency combination when there is a deep vein thrombus
284 / 62  DO NOT use this frequency combination when an injury or bruise is less than 12 hours old
284 / 34  DO NOT use this frequency combination during menstrual flow
284 / 155 DO NOT use this frequency combination during menstrual flow