Aak | Madar | Erukku Plant | Crown Flower Medicinal Use & Health Benefits: Remedy For Painful Heel Syndrome

We call giant milkweed plant or crown flower erukku in Tamil, madar in Hindi. It is a plant that grows wildly all over in Asian countries like India, Pakistan, Thailand, Sri Lanka & Philippines. Many of us think this plant has very little use but on the contrary every part of this plant has got wonderful medicinal values. Crown flower’s botanical name is calotropis gigantea and belongs to the family apocynaceae.

Aak Plant:

Aak plant is actually considered a weed in India. We make a garland out of the flowers for worshiping and when I was a child, I used to love making the garland as it is one of the easiest to make. There are two varieties of the plant that is very common in India, one produces white flowers and another produces purple flowers like in the picture above. The white flowers are regarded highly than the purple flowers. Though you can use both flowers interchangeably, if you happen to get the white plant, please use that.

Aak Plant Side Effects:

Though it is widely used in ayurvedic medicine, all parts of this plant is poisonous at certain dosage. When you cut the leaves and stem, a milky juice will flow out, this juice was used as an arrow poison in olden days. If you break the leaves from the plant, a white milky latex will flow out, if we touch this latex and then touch our eyes, it will cause reversible eye blindness. Though this plant is very poisonous, if we know how to use it correctly we can get wonderful benefits out of it. Pregnant women should never ever consume this plant internally.

Aaak Plant Medicinal Uses:

Even still today, many people use the juice to treat all kinds of poisonous bites. For that the leaves are ground to extract the juice and the juice is mixed with little bit of honey and given to the patients, but the dosage is very very important. Another important use is for boils, when the slightly warmed leaves are tied around boils, it makes it mature very fast.

The juice of the crown flower leaves are used for treating constipation too, for that the juice is extracted and 3 drops of the juice is mixed with 1.5 tbsp of castor oil and give internally. Though I am writing all the remedies here, please remember that when taking internally, it can be toxic at certain levels, so do it very carefully under the guidance of an experienced person.

You can use the plant for external applications without any problems or side effects. Here in Tamil Nadu, using erukku leaves for treating heal pain is very very famous. I was quite surprised when I came across a study that was conducted regarding the effect of crown flowers on patients who were suffering from heel pain.

The study was conducted on 60 people with heel pain, this study was done for a period of 180 days and the final conclusion was that all the patients experienced significant positive results. The researchers concluded that if the patients continued the treatment for longer periods of time, they will experience very very good results.

A few important things about the study was that it was done for almost 180 days and the patient were given warm flower compress twice a day daily. So you have to do it regularly at least for a few months to see results and the treatment has to be done regularly. It is always nice when our traditions are backed by science and I hope in the future, more studies like this are done to prove clinically all our home remedies.

3 Top Ways To Use Aak Plant:

1. Remove the leaves from the plant, you will find milky latex flowing from the broken part. Wash the leaves well to get rid of the latex.

2. Take a brick and heat it over open fire. Once hot, place the 3 to 4 leaves over the hot stone and press the heels over it. Keep pressing the heels over the leaves till the brick loses it’s heat.

3. Another method using a stone: Heat a small stone that retains heat well. Place 2 to 3 fresh leaves over the heels and then with a help of a cloth, take the heated stone and press it over the leaves. This is also very effective.

4. The method done in the study: Boil water in a pan, once it comes to a boil add the flowers and heat it for a few minutes till it is wilted, switch off and remove the flowers.

5. Place the flowers over the heels and cover the flowers with a cling film (in the study they used polythene sheet) and tie a coarse, thick cloth like a bandage over it.


  • This treatment should be continued regularly for a few months to get very good relief.
  • In the study, the flower poultice was kept on the patient for 8 hours (I think overnight) and no pain killers were given in the time period.
  • All the patients showed improvement in their walking and inflammation was significantly reduced on the 10’th day itself.
  • Most importantly, there was no side effects using the treatment (the patients blood was checked for toxicity).
  • You can do either the treatment with flowers or the leaves but when handling the hot stone be very very careful.



  1. Anonymous
    April 4, 2015 / 9:01 am

    Ramya there is a tree like albizia amara just that it has pink flowers and small pods. Is that ok. I wish I could send you the pics. I live on email only. 😃. Is there any way I can send you the pics?. Trying very hard to find albizia amara in Bharuch, Gujarat. Pl respond. ThanksTh

    • Ramya Venkateshwaran
      April 5, 2015 / 5:59 pm

      Please send the picture through wildturmeric face book message. Flowers are usually cream colored and it has long pods. I think the tree you are describing is albiza julibrissin…..

  2. Anonymous
    April 4, 2015 / 9:29 pm

    I have neerkatti in my hand.please give me a tips

    • Ramya Venkateshwaran
      April 8, 2015 / 2:18 am

      For any kind of boil, turmeric paste will work well. Apply fresh turmeric paste on the boil everyday night before going to bed, let it dry on the boil and wash it off next day morning…..

    • Anonymous
      June 24, 2015 / 11:09 pm

      Thank you. Will try.

  3. Anonymous
    June 24, 2015 / 11:09 pm

    Thank you for this. Have been thinking it would be useful for boils, if leaf warmed with a little oil then tied or taped on them. The sap from this bush is very useful to cover deep splinters with. By next morning, they come out.

  4. Unknown
    November 12, 2015 / 12:06 pm

    What is the remedy if the milk of this flower has gone in your eyes!??

    • Ramya Venkateshwaran
      November 22, 2015 / 2:11 am

      I am sorry I don't know any remedy if the milk of the flowers enters our eyes. The best thing to do is wash our eyes immediately in water and consult an eye doctor…

  5. Deepa Gupta
    December 14, 2015 / 11:21 am

    Where can we get these leaves and flowers in Mumbai?

    • Ramya Venkateshwaran
      December 24, 2015 / 11:57 pm

      Usually you can find these plants plenty along the road side and waste lands…

  6. Unknown
    May 21, 2016 / 5:15 am

    Is this plant leaf useful for reducing Bally fat.Kindly inform fact about it.

    • Ramya Venkateshwaran
      July 28, 2016 / 5:36 pm

      Though Calotropis gigantea is suggested as a remedy for weight loss in Ayurveda, I would suggest not taking aak plant internally at home as it is very toxic at certain levels………..

  7. Anonymous
    July 18, 2016 / 10:45 am

    Ramya I want to know about vitiligo remedy from aak plant

    • Ramya Venkateshwaran
      July 28, 2016 / 5:15 pm

      I am sorry, I am not aware of aak plant's use for treating vitiligo…

  8. Anonymous
    July 18, 2016 / 10:46 am

    Ramya I want to know about vitiligo remedy from aak plant

  9. Liftup self
    August 13, 2016 / 6:40 pm

    hello, there is axima on my foot and can i treat this with above plant. my foot had big spot and feel posran and some time blood also come, doctor says, it is only axima, eat steeroiad and avoid your self from water etc. it will control.

    • Ramya Venkateshwaran
      August 18, 2016 / 5:43 pm

      For eczema, I would suggest using Aloe Vera oil from the blog, with regular daily use (it might take weeks but) you will get rid of the problem completely. The oil stinks but gives very good results for treating eczema…

  10. Anonymous
    August 19, 2016 / 4:41 am

    is aak/madar is helpful treatment for asthma, phlem, jaundice etc… may i get a reply here…

    • Ramya Venkateshwaran
      August 19, 2016 / 4:34 pm

      Aak can be used for treating asthma, you can read the study that proves it here. It also has anti pyretic properties (treats fever) and is an expectorant but it is toxic at certain dosage so we don't take it internally….

    • Anonymous
      September 16, 2016 / 11:33 am

      Could you please help us. My husband and I have terrible heal pain especially early in the morning, walking down the stairs. Our GP says it's flat foot and prescribes pain killers. Don't want to take pain killers. We live in the UK, very interested in trying Aak. Could you tell me where we can purchase Aak in the UK.

  11. Anonymous
    September 5, 2016 / 3:48 pm

    is aak plant found any protein

  12. Anonymous
    September 16, 2016 / 11:31 am

    is this treatment useful for hand shoulder joint pain …and mainly hand cannot raised up due to the pain

  13. Gulnaz khan
    September 19, 2016 / 1:45 pm

    Is this good for hairfall????

  14. Gulnaz khan
    September 19, 2016 / 1:48 pm

    Plz tel me is this good for hairfall

  15. Anonymous
    April 20, 2017 / 6:00 am

    is this flower good for cancer patients

  16. Unknown
    August 21, 2017 / 7:22 am

    Hello Ramya, my father has a peculiar health issue that he thinks is a side effect of using Aak latex. my Father had taken aak some years back with honey for a skin disease. His disease was healed & then He stopped taking the aak + honey. it was stopped 4-5 years back. but now he is running into a peculiar health issue that he thinks is a side effect of aak.He think that body fat is moving all around the body and passes though the bowl. It impacts his day to day life. he now spends most of his time in the loo. I & my family is very worried on his deteriorating health. We already have done medical tests and consulted few allopathy doctors but they all are not agree that body fat can move in the body. All tests are also came good. but health is deterioratingany help from your side on it, will be highly appreciated.

    September 13, 2017 / 1:10 pm

    where can i find these leaves?

    • Ramya Venkateshwaran
      September 15, 2017 / 2:43 pm

      If you are living in India, you can find this plant easily in waste lands and road sides…

  18. Sanjeev Upadhyay
    January 10, 2018 / 4:52 am

    Hello Ramya, I have mild heel pain and the pain radiates in inner side of ankle as well. The heel pain is muscular and in tendons of the ankle. earlier i used to run , but i cant run now and walking barefoot is also difficult now. am putting the hot leaves alongwith sesame oil on heel and ankles. should i also use flowers as you have mentioned?

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