It sounds like Athletes Foot. Since it is not clearing on its own...a visit to a dermatologist might be in order.

The most common locations for athlete's foot include:

Spaces (webs) between the toes, especially between the 4th and 5th toes and between the 3rd and 4th toes

Soles of the feet

Tops of the feet

Athlete's foot may affect one or both feet. It can look different depending on which part of the foot (or feet) is involved and which fungus (ie, dermatophyte) has caused the infection:

On the top of the foot, athlete's foot appears as a red scaly patch or patches, ranging in size from 1 to 5 cm. The border of the affected skin may be raised, with bumps, blisters, or scabs. Often, the center of the lesion has normal-appearing skin with a ring-shaped edge, leading to the descriptive but inaccurate name ringworm. (It is inaccurate because there is no worm involved.)
Between the toes (the interdigital spaces), athlete's foot may appear as inflamed, scaly, and soggy tissue. Splitting of the skin (fissures) may be present between or under the toes. This form of athlete's foot tends to be quite itchy.
On the sole of the foot (the plantar surface), athlete's foot may appear as pink-to-red skin with scales ranging from mild to widespread (diffuse).
Another type of tinea pedis infection, called bullous tinea pedis, has painful and itchy blisters on the arch (instep) and/or the ball of the foot.
The most severe form of tinea pedis infection, called ulcerative tinea pedis, appears as painful blisters, pus-filled bumps (pustules), and shallow open sores (ulcers). These lesions are especially common between the toes but may involve the entire sole. Because of the numerous breaks in the skin, lesions commonly become infected with bacteria. Ulcerative tinea pedis occurs most frequently in people with diabetes and others with weak immune systems.


Self-Care Guidelines
If you suspect that you have athlete's foot, you might try one of the following over-the-counter antifungal creams or lotions:

Terbinafine
Clotrimazole
Miconazole

Apply the antifungal cream between the toes and to the soles of both feet for at least 2 weeks after the areas are completely clear of lesions.

In addition, try to keep your feet dry, creating a condition where the fungus cannot live and grow:

Wash your feet daily and dry them carefully, even using a hair dryer (on low setting) if possible.
Use a separate towel for your feet, and do not share this towel with anyone else.
Wear socks made of cotton or wool, and change them once or twice a day, or even more often if they become damp.

Avoid shoes made of synthetic materials such as rubber or vinyl.

Wear sandals as often as possible.

Apply antifungal powder to your feet and inside your shoes every day.

Wear protective footwear in locker rooms and public or community pools and showers.

When to Seek Medical Care

If the lesions do not improve after 2 weeks of applying over-the-counter antifungal creams or if they are exceptionally itchy or painful, see your doctor for an evaluation. If you have blisters, pustules, and/or ulcers on your feet, see a doctor as soon as possible.

I get reccurring blisters on my left foot that resemble cold sores, they are not sore or itchy, but look awful. they appear on both sides of my foot as well as the sole of my foot, they appear in clusters of 3 or 4 blisters in any 1 area, the blisters then change in to dry scabs after a while, what are they, and how can I get rid of them?

I've been having the same problem for 2 years now. First, I though it was a wart, so have been applying wart remover, it would remove it but then it reoccurs after a while. So now, what I usually do is, I pop them up with a nail clipper or something and wash it a lot because it spreads, I first had it on my feet only and eventually I got it into my fingers, so make sure not to touch it and after you pop them make sure to wash it with soap with cold water, and then I deep my feet in a cold water with a Sea Salt that I bought from a Korean Market. I do that every day, in the morning and after I come from outside because when you walk outside thats when you sweat and develop them, basically the treatment is to stay cool at all times. That's how I deal with it, I really hope that anybody posted us a permanent solution for this because I do this every summer.
I found out that it could be Dyshidrotic Eczema that's caused from an abnormal sweating, they call it also Pompholyx. Basically sweat holes are blocked and causing this, and I kind of noticed that I was having it on my fingers after I touch my daughter's sweaty head or hair. So very possible, but not 100% sure. Treatments are not determined yet, so looks like it will appear every summer. Other than sea salt, you could use Potassium Permanganate or Vinegar in a water. I started taking very cool showers and using always cold water when I wash hands or feet. If anybody knows other ways, please update us. I will appreciate it a lot.

That sounds exactly the same! Thank you for the info and the advice, will try it out, popping them sounds painful though!

they have many different methods too, today i saw my left foot cleared, now i'm fighting with my right foot only.

rek

Ok people seriously stop popping blisters! It is a portal of entry for micro-organisms (especially somewhere moist and warm like the feet it's the perfect environment for them) this will eventually lead to infection. If left untreated even infections of the smallest areas can become systemic and life threatening, if benzoyl peroxide and clotrimazole which are found in most anti-bacterial/fungal creams don't work see a doctor. Chances are this can be treated simply with a topical ointment that wont cost a lot (probably half as much as all of the other methods you've already tried)

I have a big blisters in my arch and i feel pain and i been treating this for one month ago then its gone suddenly it came back and now it is huge blisters can any one tell what can i do.