Thanks for posting your query at DoctorSpring.com. I can understand your concern.
You seem to be having tinea which is a fungal infection on the foot. It seems to be having some allergic component also known as eczematization.
The treatment would be application of clotrimazole and cortisone cream twice a day for five days followed by just clotrimazole cream twice a day for a week.
You could take an antihistamine like claritin once a day for the itching.
Hope this helps, Would be glad to answer any follow-ups.