£10.99
In stock
You are just £80.00 away from Free Mainland UK Delivery!
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
Welcome to Gerry’s Fishing! Prioritizing fish welfare is the hallmark of a responsible angler, and having the right treatments on the unhooking mat is essential. The Korda Ulcer Swab is a highly effective, premium antiseptic liquid designed specifically to clean and sanitize open wounds, lifted scales, hook marks, and ulcers on any area of a fish’s body. By thoroughly treating these vulnerable areas before returning your catch to the water, you prevent harmful bacteria and freshwater fungi from infecting the tissue, giving the fish the absolute best chance at a full and rapid recovery.
Many day-ticket venues, club waters, and syndicates across the country now rightly insist that anglers carry a dedicated fish care treatment in their kit. The Korda Ulcer Swab is a vital component of that setup. Formulated to be completely safe for aquatic life while remaining highly destructive to pathogens, this liquid cleanser penetrates deep into damaged tissue to sterilize the area instantly. It is incredibly easy to apply and works flawlessly on all freshwater species, ensuring our sport’s prized specimens remain healthy for future generations of anglers to enjoy.
Product Type: Topical antiseptic fish treatment liquid.
Target Applications: Open wounds, ulcers, hook puncture marks, split fins, and missing scales.
Primary Action: Sterilizes tissue to prevent bacterial and fungal infections.
Fish Safety: 100% fish-safe formulation developed alongside leading aquaculture experts.
Bottle Style: Compact, secure screw-top bottle designed to fit easily into tackle boxes or fish care pouches.
Hook Hold Sanitizing: Apply a small amount directly to the inside and outside of the mouth where the hook was seated to clean the puncture channel instantly.
Body Ulcer & Red Mark Treatment: Ideal for clearing up angry, red ulcers or raw spots along a carp or barbel’s flank that can naturally occur during spawning or after a hard battle in thick weed.
Fin and Scale Repairs: Perfect for treating minor splits on tail fins or raw areas where a scale has been pulled free during transit or netting.
Pro Tip: For the absolute ultimate bankside fish care routine, the Ulcer Swab should be used as step one of a two-part treatment. First, use a clean cloth to gently dab the wound dry, then apply the Korda Ulcer Swab to sterilize the area. To lock that protection in, follow it up immediately by applying a layer of Korda Propolis over the top. The Propolis acts as a waterproof plaster, sealing the antiseptic underneath and keeping bacteria out long after the fish has swam away!
Q: Is this liquid safe to use inside the mouth of the fish?
A: Yes, absolutely. The Korda Ulcer Swab is explicitly formulated to be non-toxic and is completely safe for use both inside the mouth on hook holds and externally on the body and fins.
Q: Can this be used on species other than carp?
A: Yes. While it is a staple in the carp angling community, it is highly recommended and equally effective for all freshwater species, including specimen barbel, chub, bream, tench, and large pike.
Q: How should I store the bottle to ensure it stays effective?
A: Keep the bottle tightly sealed and try to store it away from direct, intense sunlight inside your tackle box or a dedicated cool pouch. This ensures the antiseptic ingredients maintain their full strength over multiple seasons.
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″