Medicated shampoos can be highly effective in treating and managing scalp conditions such as psoriasis, seborrhoeic dermatitis, eczema, dandruff and associated symptoms like itchiness, scaling and oiliness.
However, incorrect use can reduce their effectiveness and make symptoms worse. Polytar Scalp Shampoo is a licensed medicated shampoo that’s indicated for the treatment of these scalp conditions. To help you get the most benefit from medicated shampoos like Polytar, it’s essential to be aware of common mistakes and how to avoid them.
What are medicated shampoos?
Medicated shampoos are formulated with active ingredients designed to manage specific scalp disorders. Coal tar shampoos, such as Polytar Scalp Shampoo, are used for conditions including:
- Psoriasis
- Seborrhoeic dermatitis
- Eczema
- Itchiness and scaling associated with these conditions
- Oily scalp and dandruff
These shampoos work by slowing the rapid skin cell turnover associated with psoriasis and seborrhoeic dermatitis, reducing inflammation and alleviating the associated itch. When used correctly, they can improve scalp health and comfort.
Common mistakes to avoid when using medicated shampoo
Medicated shampoo can be effective, but there are certain common mistakes to avoid. These include:
1. Not following the instructions
One of the most common mistakes with medicated shampoos is not following the instructions. Each product contains a defined concentration of active ingredients, and its directions for use are set to support correct use while helping to minimise irritation or over-use. For example, Polytar Scalp Shampoo should be used once or twice a week for four weeks. Overuse can irritate the scalp, while underuse may limit its effectiveness.
Tips:
- Read the label carefully before first use.
- Follow the recommended application frequency.
- Consult your doctor or pharmacist if you’re unsure about the correct usage.
2. Not leaving the medicated shampoo on for long enough
Medicated shampoos often need to stay on the scalp for a specific time to allow the active ingredients to work. With coal tar shampoos, not leaving the shampoo on for long enough may reduce effectiveness.
Tips:
- Follow the recommended contact time (for example, a total of 3–5 minutes across two applications if using Polytar Scalp Shampoo).
- Gently massage the shampoo into the scalp to ensure even coverage.
3. Using hot water
Hot water can strip the scalp of natural oils, making dryness and irritation worse. It can also wash away active ingredients too quickly, reducing their effectiveness. Excessive heat may temporarily increase scalp blood flow, worsening redness or irritation.
Tips:
- Use lukewarm water when washing your hair.
- Rinse thoroughly to remove residue without over-drying the scalp.
4. Applying too much or not enough shampoo
Using too much shampoo does not increase effectiveness and may lead to residue or scalp irritation. Using too little may reduce coverage of affected areas.
Tips:
- Apply the recommended amount to cover the scalp evenly.
- Focus on affected areas rather than the hair lengths unless advised otherwise.
5. Ignoring other hair care products
Styling products, conditioners or clarifying shampoos can interfere with medicated shampoos. Residue may reduce absorption or react with coal tar formulations.
Tips:
- Avoid other hair products immediately before or after use.
- Use a gentle, non-medicated conditioner if needed and rinse thoroughly.
6. Inconsistent use
Medicated shampoos require regular use for best results. Skipping applications reduces effectiveness.
Tips:
- Set a routine that fits your lifestyle.
- Track usage to avoid accidental overuse.
7. Expecting instant results
Improvements in symptoms such as scaling, itching or redness take time. Expecting immediate results can lead to frustration or stopping treatment too soon.
Tips:
- Be patient and allow time for improvement.
- Look for gradual changes rather than overnight relief.
8. Using medicated shampoo on broken skin
Applying medicated shampoo to cuts or severely inflamed areas can cause stinging or irritation.
Tips:
- Avoid applying to broken or bleeding skin.
- Consult a doctor if open sores or severe inflammation are present.
9. Not consulting a doctor or pharmacist
Some scalp conditions require alternative treatments. If symptoms persist or worsen, seek professional advice.
Tips:
- Speak to a doctor or pharmacist if symptoms do not improve.
- Discuss any other medications or health conditions.
Specific guidance for Polytar Scalp Shampoo
Polytar Scalp Shampoo is a licensed medicated shampoo containing coal tar solution 4% w/w. It is indicated for psoriasis, seborrhoeic dermatitis, eczema, itchiness, scaling and dandruff.
- Follow the label instructions or healthcare advice.
- Be patient, as improvements take time.
- Consult a professional if symptoms persist or worsen.
By following these guidelines, you can maximise benefits while minimising irritation.
Final thoughts
Medicated shampoos like Polytar Scalp Shampoo are effective treatments for common scalp conditions. Avoiding common mistakes and using the product as directed can significantly improve results. Always read the label and seek professional advice when needed.
