There could be a hundred reasons why your conversion rate is so low.
Are these mainstream medical products like bandaids and icepacks or are they non-mainstream like vitamins and aroma therapy products?
Secondly, do the articles and product match - eg. do the articles support the products or are they just generic medical articles?
Well I am selling only medicine for herpes and other related problems, Yes articles support the products but still the conversion rates are very less. I am not sure How I can increase my conversion rates.
That's non-mainstream in opinion and may even require a higher trust factor before purchase. A few thoughts
A. Be sure you're reaching your intended market (do you know them and what motivates them to buy?).
B. Be sure you site efuses confidence and trustworthiness.
C. Be sure you have calls to action on the article pages.
D. It sounds like people are using your website as a resource but then leaving. Maybe an exit survey for folks that land on article pages but don't actually place anything in the cart would be a good idea?
Here's a different approach - it could be that you are attracting people without the ability to buy online.
I see this a lot. I call it the "kid problem". What I see often is that many visitors are very young children doing research for one reason or another to educate, amuse themselves, come up with things to say to others, etc.
See if you can figure out what the average age is of your visitor in some kind of exit survey or contest or something.
Thanks for your replies friends, I have few points in mind to increase the conversion rates do you think this would be really helpful for me.
1. Offering Multiple Payment methods.
2. offering Customer Service
3. A Toll free Number for User
4. Making our website more secure in terms of payment methods.
5. Offering Special discounts scheme more for more conversion ratio.
Well, items 1,2, & 4 should be in place anyhow. If I can't call you then I won't order. Security is an no-brainer - it should be obvious and real. Toll free is nice but necessary IMHO as long as there is a number I can call to reach you. Special discounts? If your pricing is competitive then I wouldn't. What sells here will be the customer service and trustworthiness. Don't add on a bunch of soso tricks, provide a good product at a fair price and provide top-notch customer service. That will earn you more sales because people talk.
I hope I am not being rude.
But if you are trying to sell to the US market, then I hope your English is better on your site than in your posts.
Could this be part of your sales problem?
have you tried keyword pruning in you PPC stuff?
are you doing search and display in your PPC?
are you matching your keywords to the exact landing page?