Who should not use this ointment, and are there any precautions?

This is a product for external use only, and a few groups of people should either skip it or be careful:

• Broken or irritated skin. Do not apply it to cuts, scrapes, freshly damaged or inflamed skin. Camphor on compromised skin can sting sharply and cause unnecessary irritation.
• Lanolin or wool sensitivity. The base contains anhydrous lanolin, a wool-derived emollient. People allergic to lanolin or wool products may react to it, so check this before use.
• Infants and small children. Camphor should not be applied near the face or nose of babies or young children. Store the tube out of their reach as well — the strong smell can attract curiosity.
• Reactive skin. If your skin tends to react to active or fragranced products, test a very small area first (for example, the inner forearm) and wait to see how it responds before using it on a larger spot.

If you are pregnant, breastfeeding, have a chronic skin condition or use prescribed topical medication, consult a specialist before adding a strong camphor product to your routine.