HydroBlog March 23, 2020

Combating COVID-19: Practical Suggestions

Hot Foot Bath 

Click on the following links for a printible/downloadable PDF version of this technique, or Power Point version: Hot Foot Bath PDF, Hot Foot Bath PPt.

The hot foot bath is considered the most basic and most commonly used of all hydrotherapy techniques and is very simple and convenient. It also has profound physiological effects that have been demonstrated through research.


A summary of some of the effects of the hot foot bath which have been demonstrated include such things as the following;

  • Promotes circulation throughout the body (4, 9)
  • Boosts the immune system, significantly increases lymph flow (8)
  • Has neurological soothing effects such as promoting relaxation, relieves fatigue and insomnia (1, 3, 5, 6)
  • Other effects include; pain relief, relief of headaches, colds, asthma and nasal congestion (7, 10, 11).
  • The hot foot bath is also safer and more hygienic than taking a hot bath for many people, especially those who have heart conditions, heat intolerance or may be prone to urinary tract infections.
  • May potentially relieve deadly internal blood congestion from inflammation through the “derivative effect.” The blood vessels in the skin which help regulate body temperature are capable of holding large amounts of blood, when your skin becomes pink or red from hot water that color is from blood it has drawn away from the congested internal organs.


People with the following conditions should not do the hot foot bath (those with these conditions may try carefully doing a hot pack on the upper thighs or upper back to substitute, for some of the circulation benefits):

Numbness, loss of sensation or circulation problems in the feet
Peripheral vascular disease
Swelling in the feet or legs
Foot sores or infections -consult with a doctor
Frostbite -will cause greater tissue damage to frozen areas
Pregnancy- use with caution but reduce the time and temperature, and avoid overheating/sweating (whole body heating is to be avoided during pregnancy because of potential harm to the fetus), consult with primary caregiver



Basin or container large enough to comfortably put your feet into (like a dish pan or large bucket)
Thermometer, if available, if not, test water with elbow.
Sheet or blanket
Bath towel
Small bowl with ice water and a wash cloth
A pair of dry socks, and change of clean clothes



SHORT VERSION: Ideally, have someone help you, but if you are alone you can sit on a chair in the bath tub and fill a basin from the faucet (or just fill the tub a few inches if you don't have a basin), adding hot water whenever it starts to feel cool. Continue for 15 to 30 minutes, end with a cool rinse. 

1. BASIN: Put the basin in the bath tub under the faucet and sit on the side of the tub or on a chair or stool that fits in the bathtub.   While the basin is filling is a good time to take a drink of water.

2. WATER: Fill the basin with warm water at least deep enough to cover a couple of inches above ankles. The water temperature should be about 103 to 104 degrees F to begin with (39.4-40 degrees Celsius), or not too hot for your feet to tolerate it.  Place your hand into the water first to make sure the water is not too hot.

3. SOAK: Place your feet in the bucket and enjoy for 10-30 minutes, adding a little more hot water whenever the water seems to cool down.  For the best full-body effect, also wrap your body with a sheet or blanket, allowing the edge to drape over the foot bath basin to keep the hot water vapors close to your body.

4. ADD HEAT: Add hot water from time to time to increase the temperature gradually warmer throughout the treatment (suggested to about 110' F).  Make sure you remove your feet each time before adding more hot water. Your feet will be more sensitive to heat at the beginning of the treatment, so start out cooler and gradually increase.

5. COOL CLOTH: When you start sweating and start to feel hot, dip a wash cloth into the ice water basin and wring it out, apply it to the forehead. Renew it in the cold water every 3-5 minutes as needed.

6. COLD RINSE: When finished, empty the basin in the bath tub and rinse your feet with cold water from the tub faucet for 15-30 seconds.  

7. DRY WELL: Dry your feet thoroughly and put socks on.  If you have been perspiring, dip the wash cloth back into the ice water basin and wring it out, then briefly rub the hot areas of your body to stop the sweating (such as chest, stomach, underarms, etc.), re-dipping the wash cloth in the cold water as needed. Dry your hair well with a towel and/or blow drier if it’s wet. Put on dry clothing.

8. REST PERIOD: Rest for at least 10 minutes then dress warmly before going outside in cool weather, in order to prevent chilling. For best results, rest or sleep for at least 30 to 60 minutes after finishing the hot foot bath in order to allow the immune system and circulation to react and stabilize, as well as to stop sweating. 

(Technique references: 1, 2, 6, 7, 9, 10, 11)

Additional Notes/ Precautions:

*The goal is for your feet to turn pinkish red and to sweat all over. 

*Try adding a dash of lavender oil to increase the nerve-soothing effects of the hot foot bath, especially if doing it before bedtime. Lavender has been shown to help insomnia.

*Drink water before and after to help hydrate the body, boost the circulation and prevent dizziness from heat.

*You can drink hot water or herbal tea if you would like to have a stronger sweating response, but avoid caffeinated drinks due to the dehydrating effects.

*The cold compress to the forehead helps keep you from feeling too hot and prevents getting a headache or depressive feelings after the footbath from the heat.  It shrinks the blood vessels of the brain through nerve reflexes.

*Finishing with cold dash of water helps to close the pores, stop sweating, and prevent chilling due to continued heat loss from dilated blood vessels.

*You can rub your skin with rubbing alcohol if you don’t have ice water handy, as a final cooling treatment (though this won’t work as a substitute for the forehead compress).

*Avoid cold drafts of air in the room during the hot foot bath, or being exposed to cold air afterword. Thorough drying with a towel and/or hair dryer, as well as putting on dry clothing also helps to avoid chilling.

*Avoid walking on the bare cold floor with bare feet after finishing the hot foot bath to prevent loosing some of the good effects. Putting on clean, dry socks afterword also helps to maintain the effects of the hot foot bath longer.

*It’s better to get someone to assist you or be on stand-by if you are feeling sick, weak or dizzy, as heat can cause dizziness and even fainting. Be sure to stand up slowly to help prevent dizziness. If you are prone to dizziness or fainting, or not used to doing heat treatments, reduce the time and temperature and be sure to drink enough water.

*Avoid hydrotherapy if you’re constipated- it’s better to cleanse out the toxins before boosting circulation to avoid toxin reabsorption.

*For menstrual pain, use cool or tepid water for the final rinse instead of cold.

*The hot foot bath can be done in different places or positions, including in lying in bed, for someone who doesn’t feel strong enough to get up. Just be sure to cover a large part of the bed with plastic so it won’t get wet, and put a towel under the back of the person being treated so that the bed won’t get wet from sweat.  It can also be done without a basin in the bathtub, just by plugging up the drain, but it’s requires waiting a lot longer for the bathtub to fill and is more difficult to regulate the water temperature that way.  It can be done sitting in a chair some distance away from a faucet also, by using a bucket to transport the water- but this requires the assistance of a second person, and it is less convenient to regulate the water temperature.

*The hot foot bath will have the best overall therapeutic results if you first prepare the body by these three things during the day of your hot foot bath;

1) Hydrate: try drinking water with a squeeze of lemon in it, or clear herb teas

2) Internally cleanse: by having a bowel movement some time in the day

3) Provide nutrients: have a good source of vitamins and healing nutrients available in the blood (such as from eating fresh fruits, a green salad, or drinking some fresh vegetable or fruit juices)

*Helping someone you love take a hot foot bath can be one of the nicest ways to make them feel cared for.  The hot foot bath is generally suitable for children if done with care to avoid burns and with keeping the time and temperature a little lower than for adults.

(Notes references: 10, 11)


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1. Yang HL, Chen XP, Lee KC, Fang FF, Chao YF. The effects of warm-water footbath on relieving fatigue and insomnia of the gynecologic cancer patients on chemotherapy. Cancer Nurs. 2010 Nov-Dec;33(6):454-60. PubMed PMID: 20562619 Available at; http://www.ncbi.nlm.nih.gov/pubmed/20562619

2. Skurvydas A, Kamandulis S, Stanislovaitis A, Streckis V, Mamkus G, Drazdauskas A. Leg immersion in warm water, stretch-shortening exercise, and exercise-induced muscle damage.J Athl Train. 2008 Oct-Dec;43(6):592-9. PubMed PMID: 19030137 Available at: http://www.ncbi.nlm.nih.gov/pubmed/19030137v

3. Saeki Y. The effect of foot-bath with or without the essential oil of lavender on the autonomic nervous system: a randomized trial. Complement Ther Med. 2000 Mar;8(1):2-7. PubMed PMID: 10812753 Available at: http://www.ncbi.nlm.nih.gov/pubmed/?term=%22The+effect+of+foot-bath+with+or+without+the+essential+oil+of+lavender+on+the+autonomic+nervous+system%3A+a+randomized+trial.%22

4. Yoon SJ, Park JK, Oh S, Jeon DW, Yang JY, Hong SM, Kwak MS, Choi YS, Rim SJ, Youn HJ. A warm footbath improves coronary flow reserve in patients with mild-to-moderate coronary artery disease. Echocardiography. 2011 Nov;28(10):1119-24. PubMed PMID: 21854441 Available at: http://www.ncbi.nlm.nih.gov/pubmed/?term=%22Echocardiography.+2011+Nov%3B28(10)%3A1119-24.%22

5. Yamamoto K, Aso Y, Nagata S, Kasugai K, Maeda S.  Autonomic, neuro-immunological and psychological responses to wrapped warm footbaths--a pilot study. Complement Ther Clin Pract. 2008 Aug;14(3):195-203. PubMed PMID: 18640631 Available at: http://www.ncbi.nlm.nih.gov/pubmed/18640631

6. Liao WC, Chiu MJ, Landis CA A warm footbath before bedtime and sleep in older Taiwanese with sleep disturbance. Res Nurs Health. 2008 October; 31 (5): 514-528  PubMed PMID:18459154 Available at: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2574895/

7. Smith, R. Hot Foot Bath [Internet] NEWSTART Lifestyle Club [cited 2013 June 9] Available from: http://newstartclub.com/resources/detail/hot-foot-bath

8. Olszewski W, Engeset A, Jaeger PM, Sokolowski J, Theodorsen L. Flow and composition of leg lymph in normal men during venous stasis, muscular activity and local hyperthermia. Acta Physiol Scand. 1977 Feb;99(2):149-55. PubMed PMID: 842371 Available at: http://www.ncbi.nlm.nih.gov/pubmed/842371

9. Liao WC, Landis CA, Lentz MJ, Chiu MJ. Effect of foot bathing on distal-proximal skin temperature gradient in elders.Int J Nurs Stud. 2005 Sep;42(7):717-22. Epub 2005 Jan 25. PubMed PMID:16084919 Available at: http://www.ncbi.nlm.nih.gov/pubmed/16084919

10.Lau, B. Hydrotherapy for Flu and Respiratory Infections. US:Independent Publisher Services, 2010. 55p.
11. Thrash, A, Thrash, C. Home Remedies. Seale: NewLifestyle Books; 2005, 68p.