With our climate, various skin infections are a problem for many people. Especially fungal infections that come with itching, redness, and peeling in sweaty, moist areas are very annoying. Sometimes we also call this 'dermatitis' or 'ringworm'. So today we are going to talk about a medicine that is used to treat such fungal infections. That is Undecylenic Acid.
What exactly is Undecylenic Acid?
Simply put, Undecylenic Acid is a medication used to treat fungal or yeast infections on your skin. It belongs to a class of drugs called antifungals . Just like we use different types of soap to clean a dirty area, there are different types of medications to treat different types of germs in our bodies.
The most important thing is that this medicine only works on fungal infections . It does not cure infections caused by bacteria or viruses. Therefore, it is very important to know exactly what is wrong with your skin before treating it.
Things to tell your doctor before using this medicine
Before using this medicine, you should definitely discuss these matters with your doctor.
- If you have an allergic reaction to Undecylenic Acid or any other medicine, food, dye, or preservative.
- If you are pregnant or trying to get pregnant .
- If you are a breastfeeding mother .
When you tell the doctor this kind of information, it will be easier for him to decide whether this medicine is suitable for you or not.
Okay, how exactly do you use this?
It is very important to follow these steps when using this medicine.
1. This medicine is for external use only . Do not take it by mouth for any reason.
2. Wash your hands thoroughly with soap and water before and after applying the medicine. However, if you are applying the medicine to an infection on your hands, wash your hands only before applying the medicine.
3. Be careful not to get it in your eyes . If you accidentally get it in your eyes, rinse your eyes thoroughly with clean water for several minutes.
4. When applying the medicine, apply it in a thin film, covering the infected area and a small area around it. There is no need to apply it too thickly.
5. Use only the prescribed amount as directed by your doctor or as indicated on the medication package.
What if it is used for small children?
In some cases, this medicine may be recommended for children over 2 years of age. However, this should only be done under medical advice. Therefore, you should talk to your doctor before giving this medicine to your child.
What if you use too much by mistake?
If you think you have accidentally taken too much of this medicine, or if someone has taken it, immediately call the National Poisons Information Centre at the Colombo National Hospital . Or go to the Emergency Treatment Unit (ETU) of the nearest hospital.
Remember, this medicine is for you only. Do not share it with anyone else, even if your symptoms are the same.
Things to keep in mind when using the medicine
To prevent fungal infections from recurring, it is very important to take care of these things while using medication.
- If your symptoms do not improve or get worse, see your doctor immediately . If you need to use this medicine for more than 4 weeks, talk to your doctor about that too.
- Keep your skin dry. Fungal infections love moisture, so dry your body thoroughly after bathing.
- Always wear clean, washed cotton clothes . Clothes made from synthetic fabrics do not absorb sweat and can encourage the growth of fungus.
These factors need to be considered, especially when treating conditions such as `Athlete's foot` (a fungal infection that occurs between the toes) and `Jock itch` (a fungal infection that occurs in the groin area).
| Infection Type | Things to pay special attention to |
|---|---|
| Jock Itch (fungal infection of the groin) | Avoid wearing tight underwear. Wear loose, cotton underwear instead of underwear made from synthetic fabrics like nylon and rayon. Dry the groin area thoroughly after bathing. |
| Athlete's Foot (fungal infection of the foot) | Dry your feet thoroughly after bathing, especially between the toes. Avoid wearing wool or synthetic socks. Wear two clean cotton socks every day. Change them once a day if possible. Wear well-ventilated shoes or sandals. You can also use something like talcum powder to keep the skin dry. |
Should we also be aware of the side effects?
Like any medication, this can cause side effects in some people. It's important to be aware of that.
| Side effects that you should report to your doctor immediately | |
|---|---|
| Allergic reactions | Skin rash, itching, swelling of the face, lips, tongue or throat. |
| Severe skin reactions | Inflammation, severe itching, peeling, or crusting at the site of application. |
| Things that are usually not serious, but should be reported to the doctor if they persist | |
| Minor skin discomfort | Slight burning or redness where the medicine was applied. |
How do you safely store and dispose of medication?
When storing medication, keep it out of the reach of children and pets . It is best to store it at room temperature (between 20-25 degrees Celsius). Do not use expired medication.
When disposing of expired or no longer needed medications, check the instructions on the package. If you are unsure, ask your doctor. If it is safe to throw them in the trash, do this:
1. Remove the medicine from the tube or bottle.
2. Mix them with something like used coffee grounds, soil, or cat litter.
3. Place this mixture in a sealable bag or container and seal it tightly.
4. Then put it in the trash can.
We have written this description to give you a basic understanding. If you have any further questions about this medication, please discuss them with your doctor.
Take-Home Message
- Undecylenic Acid is a medication used only for fungal infections. It does not treat bacterial or viral infections.
- This medicine is for topical use only. Avoid taking it by mouth.
- To prevent fungal infections, it is very important to keep the skin dry and clean at all times.
- If you experience an allergic reaction or severe side effects while using the medicine, see a doctor immediately.
- This medicine is for you only. Do not give it to anyone else, even if your symptoms are similar.


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