How To Use Your F and C Cream

CMI, Skin / By

Effective Treatment for Solar Keratosis: A Comprehensive Guide to F and C Cream

This innovative compounded treatment originated from successful clinical trials at Harvard University in the USA. Both elements, when combined, demonstrate synergistic effects by inducing antitumor immunity against sun spots and, potentially, cancers of the skin.

What is F and C Cream?

F and C Cream is a topical medication used specifically for the treatment of solar keratoses (actinic keratosis)—rough, scaly patches of skin developed from prolonged sun exposure. The cream combines two active ingredients: a chemotherapy agent and a synthetic derivative of vitamin D.

Phase 1: Pretreatment (Preparation)

To ensure the active ingredients in the F and C Cream can penetrate effectively, it is often necessary to prepare the skin surface.

  • Product: Propaira 10% Salicylic Acid Exfoliating Cream

  • Purpose: This cream acts as a keratolytic agent to gently soften and remove the outer layer of thickened, scaly skin.

  • How to use: Apply as directed by your specialist prior to beginning your F and C cycle to “prep” the lesions for treatment.

Phase 2: The F and C Treatment

Your treatment is supplied as two separate creams that must be mixed together immediately before each application.

Your Treatment Components:

  1. Chemotherapy Agent 5% (20g tube)

  2. Synthetic Vitamin D (20g tube – strength varies by prescription)

Mixing Options:

Option Component A (Chemo) Component B (Vit D) Final Strength (Mixed 1:1)
Option 1 5% Cream 50 mcg/g Cream 2.5% Chemo + 25 mcg/g Vit D
Option 2 5% Cream 100 mcg/g Cream 2.5% Chemo + 50 mcg/g Vit D

Instructions for Use

1. Preparation

  • Wash the affected area gently with mild soap and water.

  • Pat dry with a clean towel.

  • Wash your hands before mixing and applying.

2. Mixing and Application

  • Squeeze out equal amounts of both creams (about ½ fingertip unit (FTU) of each for an area the size of your palm).

  • Note: 1 FTU = a strip of cream from the tip of the index finger to the first crease (~0.5g).

  • Mix the two creams together on a clean fingertip or small dish until the texture is uniform.

  • Apply evenly over the affected skin and gently rub in until absorbed.

3. Hydration (The Whole Process)

  • Product: My Skin Pharmacy Moisture Lock Rich Moisturiser

  • Purpose: To maintain the skin barrier and manage dryness during and after the treatment process.

  • Timing: Wait at least one hour after applying your F and C treatment before applying the Moisture Lock Rich Moisturiser to ensure the medication has been fully absorbed.

4. Frequency and Duration

  • Frequency: Apply twice daily (morning and evening) or as instructed by practitioner.

  • Duration: Typically 4–8 days.

  • The Goal: The expected reaction is mild redness (similar to sunburn). Once pink/red skin appears, treatment is complete—you do not need to continue.

Sun Protection: A Critical Step

During and after treatment, your skin will be significantly more sensitive to UV radiation.

  • Required Product: Propaira SPF50+ Sunscreen or Propaira SPF50+ Tinted Sunscreen.

  • Application: Use daily on all treated areas. Propaira sunscreens provide high-level protection specifically formulated for sensitive or post-procedure skin.

  • Physical Barriers: In addition to sunscreen, use long-sleeved shirts and wide-brimmed hats. If possible, avoid direct sun exposure entirely during the active treatment phase.

Important Precautions

  • Irritation Management: If you experience severe burning, pain, blistering, or extensive oozing, stop treatment and contact your doctor.

  • Avoid Irritants: Refrain from using harsh exfoliants (other than the prescribed pretreatment) or alcohol-based products on the area.

  • Storage: Store at room temperature (20-25°C). You may also store the cream in the fridge door for up to six months. Keep away from direct sunlight.

Note: If no skin reaction occurs after 4 days of application, contact your doctor; they may advise you to extend the treatment duration.

Consult Your Doctor: Provide your doctor with a complete medical history, including any medications you are currently taking. Routine follow-ups are essential to monitor your treatment progress.

Disclaimer: This leaflet is for educational purposes only and does not replace medical advice. For any questions or concerns regarding your treatment, consult your healthcare provider or pharmacist.

The Team at My Skin Pharmacy

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