The purpose of the study is to investigate the effectiveness of a sun lotion containing a specific Jellyfish sting inhibitor versus regular sun lotions as controls. In addition, to investigate the effectiveness of hot/cold immersion for the treatment of Cyanea sp stings versus local pain relief with prescription free pharmaceutical drug (Xylocain 30 mg/ml (3%) lidocain).

Inclusion Criteria:

• Volunteers
• men or women
• aged 18 or over

Exclusion Criteria:

• People with atopic diseases, e.g., asthma, allergic rhinorrhea or rhinitis, hay fever, or atopic skin inflammation
• People who suffer from skin diseases in the testing regions or whose inner forearms are too hairy to allow for interpretation of the test
• People who have used any medical or cosmetic product on either arm for 48 hours before the start of the experiment
• People who are taking antihistamines or steroids
• Subjects with medical conditions which, in the opinion of the investigator, pose risks that would prohibit participating
• Subjects with a history of keloid formation will be excluded from the Jellyfish protocol
• Subjects with allergy to lidocain or other local pain substances

If the arms contain hair that might reduce the jellyfish tentacle contact with the skin, the arm must be shaved in advance, so the skin has no sign of piling or any skin damage before the test.