Leaves of 3, let it be!

Poison Ivy or (Tsuta Urushi) 蔦漆 【つたうるし; ツタウルシ】 is very prevalent at this time of the year, so be careful to stay away from plants with leaves of 3… here’s an excert from wikipedia…

The reaction caused by poison ivy, urushiol-induced contact dermatitis, is an allergic reaction. Around 15% to 30% of people have no allergic response, but most people will become sensitized with repeated or more concentrated exposure to urushiol. Reactions can progress to anaphylaxis. Over 350,000 people are affected by poison ivy annually.

Urushiol binds to the skin on contact, where it causes severe itching that develops into reddish coloured inflammation or non-coloured bumps, and then blistering. These lesions may be treated with Calamine lotion, Burow’s solution compresses or baths to relieve discomfort, though recent studies have shown some traditional medicines to be ineffective.[12][13] Over-the-counter products to ease itching—or simply oatmeal baths and baking soda—are now recommended by dermatologists for the treatment of poison ivy. Sunlight bar soap applied directly to the affected area to coat the skin is also effective at drying up the blisters.  In severe cases, clear fluids ooze from open blistered sores; these cases should be treated with corticosteroids.

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