Do not use on open wounds, mucous membrane, under a band aid, or on burnt skin.
Use once to twice a day.
With a Q-tip, dab liquid on individual pimple.
Do not use on large areas.
We understand the label semantics to read as the following: You should not use it for more than 15 consecutive days if you use it as a compress nor for more than 5 consecutive days if you soak your thumb or toes into the product. Hexamidine Di-isétionate is used in the product formula as a preservative. If it lost its activity after a while, it would not be use in skincare products as an active to prevent bacteria and fungus growth.
Acne is the result of trapped dead cells glued together with sebum, not dirt! The solution is to empty the pore by exfoliation. However, if you are too aggressive, you dehydrate the surface and exfoliation will no longer work.