Replied by Ted (Bangkok, Thailand)
A ringworm is a fungus. Recently the best remedy for facial area that have worked with me, topically, is the 1-3% H2O2 peroxide solution. In most situations a 1% H2O2 application works quite well, however, it appears the frequency of application is critical, which had to be reapplied, at least initially for every 30 minutes, with a minimum of 5 applications. A 1% is the H2O2 concentration I used, which can be diluted from the 3% H2O2 used in drug stores. So, assuming I want to prepare a large batch of the preparations, this means one small cup of 3% H2O2, plus 2 small cups of water, should about be equal to 1%. The solution is then applied to the skin, with frequency, using cotton balls.
If the above solution is too weak, another simple solution is the application of 1 part of 1% H2O2, plus 1 part of pure distilled vinegar. This is then applied to the skin for about every 30 minutes interval, for 5 times. Thereafter, the application is applied, whether it's H2O2 alone or H2O2 mixed with distilled vinegar, every 3 hours. Once it gets better the intervals between application increases perhaps to about 4-6 times per day.
I have found the H2O2 to work better, while tea tree may be too much of a skin irritant in the face area.Hence a H2O2 is more likely a more skin friendly solution.
It should be noted that too frequent application may cause skin drying, but that's the reason why tinea can't grow.
There are other solutions that can be used, but the chemicals are relatively hard to find. Getting the body alkalized helps. Eating certain foods, which can be any high protein foods, causes the body to be acid, which is why tinea exists. Hence, it is necessary that urinary pH be kept at 7 during the treatment period to discourage its further outbreak. So for men's dose, at least 1/2 teaspoon of baking soda in at least 1/2 glass of water taken twice a day should get the body to be more alkaline, discouraging its growth.