Wellness Journal | Blog | Hydration Room

Early Flu Season in California: How to Strengthen Your Immunity Now

Written by Dr. Florie | December 5, 2025

California may experience an early and more intense flu season, as well as the emergence of a new H3N2 subvariant. The Hydration Room offers physician-formulated IV therapies to support hydration, recovery, and immune resilience during peak flu months.

California’s flu season may arrive earlier and hit harder this year. Health experts across the state are watching a combination of a newly emerging flu mutation, and strong international flu activity that has already overwhelmed parts of Europe and Asia. For Californians, that means strengthening your immune system, which is critical to staying ahead of viral season.

At the Hydration Room, we witness firsthand how quickly flu-related fatigue, dehydration, and inflammation can disrupt people's routines. While no IV therapy can cure the flu, supporting your body’s immune response early can make a meaningful difference in how you feel and how quickly you bounce back.

Here’s what’s happening globally, what it means for California, and how you can protect your health with evidence-based tools.

A New Flu Subvariant Is Emerging

Public health researchers have identified a new mutation of the H3N2 flu virus, called subclade K, which appeared after this year’s flu vaccine formula was decided. Early reports from Japan and the United Kingdom show that this strain is spreading faster and earlier than usual, and experts warn that the trend may reach California.

Even with the new mutation, early data from Britain show that this year’s flu vaccines still significantly reduce the risk of hospitalization, especially in children and older adults. That’s important, and it’s one reason public health departments continue to recommend vaccination before holiday gatherings.

How Hydration Room Supports You Through Flu Season

The Hydration Room was created to provide you with access to physician-formulated IV and injection therapies that support your immune system, energy levels, and overall recovery. During flu season, our treatments help patients feel stronger and more resilient, whether they’re fighting early symptoms, recovering from illness, or proactively protecting their health.

Here’s how our most popular immune-support solutions can help.

1. Immune Support IV Therapy

Vitamin C • D3 • B Vitamins • Zinc • Glutathione

Your immune system depends on micronutrients to function efficiently, especially vitamin C and zinc, which support white blood cell activity and help the body respond to viral stress. When you’re run down, dehydrated, or recovering from a cold or flu, your needs for these nutrients increase.

Our Immune Support IV provides high-quality hydration plus targeted antioxidants that may help:

  • Support a more robust immune response
  • Combat inflammation
  • Replenish nutrients depleted by illness or stress
  • Boost overall vitality during peak flu season

2. Cold & Flu Remedy IV

Zinc • Selenium, NAC Glutathione • Vitamin C • D3


If you’re already under the weather, this IV is designed to help alleviate common symptoms, such as dehydration, fatigue, body aches, and headaches. While it isn’t a substitute for antiviral medication like Tamiflu, which doctors recommend starting within one to two days of flu symptoms, it can support your body while you recover.

Patients often report:

  • Faster rehydration
  • Reduced fatigue
  • Improved mental clarity
  • Better overall comfort during recovery

As always, our licensed medical professionals will ensure the treatment is appropriate for your symptoms and help you understand when additional care is needed.

3. Wellness Infusion IV

Inositol • Folic Acid • B6 • D3


This infusion supports foundational health by optimizing hydration, nutrient status, and cellular function, making it a smart preventative option during months when viral illnesses are circulating widely. Think of it as giving your body a stronger baseline.

When to Seek Additional Medical Care

We care deeply about your safety. Always contact a healthcare provider if you experience:

  • High fever
  • Shortness of breath
  • Persistent vomiting or dehydration
  • Chest pain
  • Symptoms in children under age five or adults over 65
  • Worsening symptoms after initial improvement

IV therapy is supportive, not a standalone treatment, and should be combined with evidence-based medical care, especially during a severe flu season.

“During a challenging flu season, our goal is to support the body, not override it. Hydration, targeted nutrients, and early medical care work together to help your immune system function at its best. IV therapy isn’t a cure, but it can be a powerful complement to the foundational steps that keep you feeling well.”
— Dr. Brett Florie Founder, Chief Medical Officer & Board-Certified Anesthesiologist

California may face a challenging flu season, but you’re not powerless. Your routine choices (sleeping well, staying hydrated, supplementing wisely, and seeking care early) make a real difference.

At the Hydration Room, we’re here to be Your Healthy Place all season long. Whether you’re seeking preventative support or recovering from illness, our licensed medical team is ready to help you feel like a healthy you again. If you’d like to prepare for flu season, you can book online in minutes or stop by any of our clinics across California.

Proactive Steps to Protect Yourself This Winter

Health organizations worldwide emphasize simple, effective actions:

Consider immune-support IV therapy. For additional hydration and nutrient support during high-risk months.

Test early when symptoms start. At-home flu tests are now widely available.

Stay hydrated and rest. Your immune system needs both to function well.