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Topical Remedy of Ulcers
Topical treatments for koi ulcers and body sores have ranged from Iodine in the olden days, more recently, hydrogen peroxide. These have one thing in common: They excoriate or burn the adjacent tissues.
- Panolog- Antibacterial and anti-inflammatory, helps healing. Can work alone.
- Tincture of Iodine – cauterizes, applied directly, stains badly. Very effective. 7% best
- Hydrogen Peroxide – Elegant! Very effective, no staining, cauterizes, antibacterial, safe.
- Mercurachrome – Stains for a very long time, safe for humans, effective, good choice. Do not scrub.
Tips for toplcal treating of koi body sores and ulcers:
- Only treat meat-red, bloody wounds
- Don't treat pink wounds directly.
- Do not scrub if wound is tidy and neat.
- When wound is pink with white rim – LEAVE IT ALONE
- Do not scrub healing wounds
There is little doubt that the average hobbyist would be best served to combine Medi-Koi medicated food and antibacterial bath or topical treatment together to recover their fish. Not only are the treatments effective, they are also cost effective.

