What is thermotherapy and when does it help?
Thermotherapy (termotherapy) uses local heat application to relieve pain and support recovery. Heat can relax tense muscles, reduce joint stiffness, and improve local blood circulation – which is why it is often used for muscle and joint complaints and for menstrual and endometriosis-related abdominal pain.
Important rule of thumb: heat is a friend of chronic, tense, cramping complaints. For fresh, acute injuries (swelling, the first days of inflammation) heat is not recommended — cold is the correct choice in those cases; more on that below.
Can't decide which device to choose?
In this category you'll find devices that help relieve menstrual and endometriosis-related pain. The choice essentially comes down to one question: is wearable heat (possibly with massage) enough, or do you also want electrical pain relief (TENS) alongside heat? The detailed buying guide under the products will walk you through it: detailed buying guide.
OVA Therma Belt: heat and massage therapy belt to relieve menstrual pain, dysmenorrhoea and endometriosis symptoms.
Price includes: 1x Ova heat therapy belt, 1x charging cable
Ova combined heat and electrotherapy device for menstrual and endometriosis-related pain.
How to choose a thermotherapy device?
All thermotherapy devices deliver heat, but not all in the same way. Some only heat, some combine heat with massage, and some provide electrical pain relief (TENS) alongside heat. When choosing, consider the type of complaint and whether you want a "multifront" pain-relief approach.
How does heat work?
Local heat can help in several ways: it relaxes tense muscles, may reduce joint and muscle stiffness, and improves circulation in the treated area. Better local blood flow supports tissue oxygen and nutrient supply, which can contribute to pain relief and recovery. For menstrual cramps, heat can help relax the uterine muscles — studies show that local heat brings meaningful relief from cramping pain for many women.
Heat provides symptomatic relief
Thermotherapy supports symptomatic relief of pain and tension; it does not treat the underlying disease causing the complaint. For example, with endometriosis it is a complementary comfort measure — diagnosis and treatment are tasks for a gynecologist.
Heat or cold? – The most common mistake
The most frequent error is applying heat to a fresh injury. The table below helps decide which to use and when.
| Situation | Heat or cold? | Why? |
|---|---|---|
| Menstrual cramp, abdominal tension | Heat | Heat can help relax the cramping muscles. |
| Chronic muscle or joint stiffness, tension | Heat | Heat relaxes tense muscles and relieves stiffness. |
| Warming up before exercise or physiotherapy | Heat | A warmed muscle is more flexible and less prone to injury. |
| Fresh (acute) injury, first 1–2 days | Cold | Heat can worsen swelling and inflammation at this stage. |
| Bruise, joint swelling immediately after injury | Cold | Cold reduces swelling and hyperemia. |
What types of devices can you choose from?
| Device type | What it does | Who it's for |
|---|---|---|
| Thermotherapy (with massage) belt | Wearable, targeted heat for the abdomen, often combined with vibrating massage. Simple, portable, battery-powered. | For menstrual/abdominal pain when you want a simple, comfortable, on-the-go solution. |
| Combined heat + electrotherapy (TENS) | Delivers heat and electrical pain-relief impulses simultaneously, using electrodes. | If heat alone is insufficient and you want to relieve pain by multiple mechanisms. |
Quick decision guide
| If you want… | Look here first |
|---|---|
| Simple, wearable heat (+ massage) for menstrual cramps | Ova Therma Belt |
| Heat and electrical pain relief in one device | Ova Period Pain Reliever |
Dr. Zátrok's advice
If you want a simple, portable solution for menstrual cramps, start with a wearable thermotherapy belt. It's discreet, can be worn under clothing, and delivers heat where it's needed.
If heat alone isn't enough, consider a combined heat + electrotherapy device: heat plus TENS impulses can relieve pain through multiple mechanisms.
One more thing to remember: for fresh injuries and swelling, apply cold, not heat. Heat is the friend of cramping, tense, chronic complaints—not of acute swelling.
And most importantly: if your menstrual pain is severe, getting worse, or newly appearing, don't just heat it — have it evaluated by a gynecologist. Heat is a comfort measure, not a diagnosis.
Important safety information
Always use thermotherapy devices according to the user manual. Avoid local heat (or combined electrotherapy) in the following cases, or use only with medical approval:
- Fresh (acute) injury, swelling or inflammation – cold is recommended in these cases, not heat
- Open wound, skin infection or dermatitis on the treated area
- Reduced skin sensation (e.g. neuropathy caused by diabetes) – because of the risk of burns
- Area affected by circulatory problems or insensitivity
- Pregnancy – seek medical advice before applying abdominal heat or electrotherapy
- Pacemaker or other implanted electronic device – consult before using combined (electrotherapy) devices
- Tumor lesion or unexplained pain in the treated area
To avoid burns
Do not set the temperature too high and do not fall asleep with the device switched on while it's on your body. If you notice redness, stinging-burning sensations or uncomfortable heat, reduce the temperature or remove the device. The heat should feel pleasant, not hot.
