How to Treat CHS: First Steps

Written by the CHS SOS Team · Medically reviewed, sources cited throughout · Last updated: July 2026

TL;DR — Key Takeaways

• No medication permanently cures CHS while cannabis use continues.
• Hot showers or baths offer real, if temporary, relief during an acute episode.
• Capsaicin cream applied to the abdomen has shown evidence of reducing vomiting intensity.
• IV fluids and antiemetics help manage a hospital visit but do not prevent the cycle from repeating.
• The only thing that actually ends CHS long-term is stopping cannabis completely.

If you are in the middle of an episode right now, you need relief, not a history lesson. And if you have been dealing with this on repeat, you need an actual plan. This covers both: what helps in the moment, and what actually breaks the cycle for good.

What to do during an acute episode

Hot shower or bath, the most reliable short-term relief

This is not a myth or a placebo effect. We explained the mechanism behind it, the TRPV1 receptor pathway, in detail in our guide on what CHS is. The short version: very hot water activates a receptor pathway that temporarily overrides the nausea signaling your gut is sending. Most people report meaningful relief within 5 to 15 minutes of stepping into a very hot shower.

The relief does not last, usually 30 to 60 minutes, and it fades once you step out. This is exactly why people with undiagnosed CHS often end up spending hours a day in the shower. It is the only thing that works. Useful as it is in the moment, it is a management tool, not a treatment.

Capsaicin cream on the abdomen

This is one of the better-supported short-term options available. Apply capsaicin cream, 0.075% concentration or higher, directly to the stomach area. It activates the same TRPV1 pathway as hot water, but focused on the area where the discomfort actually is.

A 2017 case report in The American Journal of Emergency Medicine documented real symptom reduction using topical capsaicin in CHS patients. Emergency physicians have started adopting it more often as a first-line option for that reason.

One caveat worth knowing upfront: capsaicin cream causes a noticeable burning sensation. Start with a small amount to see how your skin reacts before applying more.

Hydration, but carefully

Repeated vomiting dehydrates the body fast. If you are able to keep fluids down at all, small, frequent sips of an electrolyte drink work better than plain water. If you cannot keep anything down for more than 6 to 8 hours, that is the point to go to the emergency room. IV fluid replacement becomes necessary in a lot of severe CHS episodes, and there is no shame in needing it.

Antiemetics for acute management

Medications like ondansetron (Zofran) and promethazine can reduce vomiting intensity short-term. They do not touch the underlying cause, but they can make a bad episode survivable. Haloperidol, an antipsychotic, has shown surprisingly strong results in acute CHS cases handled in emergency settings, in some studies outperforming the more traditional antiemetics. All of these require a prescription. Talk to a doctor, or go to an ER if an episode is severe.

What does not work

• Using more cannabis to stop the vomiting. It might buy 30 minutes of relief, but it extends the episode and worsens the underlying condition.
• Antacids, PPIs, or reflux medication. CHS is not acid-related, so these do not really do anything here.
• Ginger, peppermint, or typical nausea remedies. Too mild for what CHS actually involves.
• Switching to CBD-only products while still using THC. THC is the actual driver of CHS, so this does not remove the trigger.

The only treatment that actually lasts

Every clinical study, case report, and patient account converges on the same answer. CHS does not resolve while cannabis use continues. That is a hard thing to hear, and for a lot of people, even harder to accept. The underlying biology behind why this is the case is something we cover thoroughly in our piece on what causes CHS, if you want the full picture.

Most people see meaningful improvement within one to two weeks of complete cessation. For some, it takes a month or two. In rare cases, especially after very long-term heavy use, it can take longer than that. Reducing use, taking a tolerance break, or switching to lower-THC products does not reliably stop CHS, based on what the evidence shows. Complete, permanent abstinence is what actually works.

Where CHS SOS fits into this

CHS SOS was built specifically to support the cessation and recovery process, addressing the withdrawal symptoms, cravings, and physical discomfort that make quitting genuinely hard when CHS is part of the picture. It is not a substitute for medical care. It is a focused support tool for people who are ready to stop and want help staying stopped.

Frequently Asked Questions

How long does it take for CHS to go away after quitting?

Most people see significant improvement within one to four weeks of complete cessation. Full resolution typically follows within one to three months.

Can I use cannabis again after CHS resolves?

In nearly every documented case, CHS comes back once cannabis use resumes. Most clinicians recommend permanent abstinence after a CHS diagnosis, not a cautious return.

Is there a specific diet that helps with CHS?

No diet has been shown to treat CHS directly. During recovery, small, bland meals, crackers, rice, toast, bananas, tend to be easier on the stomach. Spicy, fatty, or acidic food is worth avoiding during an active episode.

Should I go to the ER for CHS?

Yes, if you cannot keep fluids down for more than 6 to 8 hours, if dehydration feels severe, or if abdominal pain is intense. IV fluids and hospital-administered antiemetics are often genuinely necessary at that point.

Ready to end the cycle?

CHS SOS was built for exactly this moment, by people who lived through CHS and came out the other side. See how it can support your recovery. For the bigger picture, start with our complete guide to CHS.