I'm Sorry to hear about your symptoms. From what you are describing there can be a few conditions which can cause this problem. The first one which comes to mind is that you could have erythromelalgia. this is a condition in which you would have swelling and redness of the soles of the feet and even the palms of the hands. Usually the symptoms can be pain while walking, burning sensation in the affected area alongwith swelling of the region. This can be due to a primary reason which means that the underlying cause is unknown or secondary in nature in which there is an autoimmune cause for the disease. It can affect the scrotum in some cases as well.The treatment can be with various drugs such as anti convulsants, lyrica etc. Here is some more information about this disease,
Now apart from the above condition, this can also be due to an autoimmune disorders like lupus which can cause redness anywhere in the body and a rash. This would be diagnosed on tests like ESR and ANA and with a clinical examination.
Now it is also possible that you have two separate conditions, the swollen and red scrotum can be due to an infection of the region such as orchitis which is a bacterial or viral infection of the testicles. this can cause pain, burning urination as well as blood in semen in some cases. This would be diagnosed on a ultrasound and urine tests. The treatment can be with antibiotics etc. Epididymitis can also be a cause here which is an infection of part of the testes. The red soles can be indicative of cellulitis of the feet which is again an infection. This would again need an examination and ultrasound. The infections are possible because of the use of steroids recently which would suppress your immune system.
Lastly this can be due to a side effect of teh antibiotics which you were on. if this is the case then this should resolve within a few days with using OTC antihistamines etc.
Now i would suggest that you contact your doctor and have him look into these possibilities and determine the actual cause of this problem.
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