Why I decided to not attend Nepal Respiratory society conference 2025?

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I am a super-specialist doctor. Hence, when I learned about the pulmonology conference in Nepal in September 2025, I thought of attending it since I was there for some other work.  But I ultimately decided against attending the Nepal Respiratory society conference. You will agree that 'the first impression is the last impression'. And my first impression about the conference and organizers, unfortunately, was bad.  Reasons: 1. Incomplete information on internet  No proper directions on internet. There was incomplete and wrong information.  2. No office When anyone makes a medical society or association, it needs to have a proper physical address, phone number, and email id. But this, Nepal respiratory society, lacked all of this.  3. Piecemeal information  Initially, the registration details had no details about registration for international delegates. Later, this was added. But again, there was improper info on it. At one place, the fees was 12k npr and a...
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Henna hair dye: safety, usefulness, and limitations.

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 Henna is a natural temporary coloring agent obtained from leaves and tender stems of the plant,  Lawsonia imtermis. Used on skin and hair, it gives a typical brownish orange hue to the part. 

Henna and hair color

Henna gives a typical color to the hair. It hides whites but does not blacken it unfortunately. Hence it is not a versatile hair dye. It also takes many hours to produce effect. The color though natural is not permanent. But how safe is it?


Henna for hair and its safety

Since henna is natural, it is a natural tendency to think that it is a safe option to the chemical dyes for hair. But is it so really?

Henna does not penetrate into hair shaft and only remains on the hair surface. Hence it sits there preventing any hair conditioner to reach the hair cuticle. Hence hair could become lifeless and brittle with repeated use. Henna per se does not condition the hair. 

Though predominantly non-allergic, henna does have a low allergic tendency. But some cases of allergy could be due to the other components mixed in the henna-based hair dye mixture including contaminants such as nickel and cobalt. 

Henna does have some action against Malassezia furfur, the fungus causing dandruff. 

Remember 'black henna' has PPD in it in high concentrations. Hence for people allergic to it or looking for PPD free hair dyes, it is best avoided. 

Coronavirus vaccines and people's and expert opinion on it


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