Thank you for the additional information.
It seems to me that you may be having a fungal infection of the groin area.
You could use a cream containing 2% Ketoconazole
( For eg- Nizral cream) or 1% Terbinafine
( For eg- Terbest cream). Apply it on the sides of the thighs and on the scrotum
twice day, once after bath and once at bedtime. Use the cream for 3 weeks ( even if the itching subsides, continue the cream till 3 weeks to prevent regrowth of fungus).
Take a tablet containing 5 mg Loratidine
( For eg- Tab. Lorfast) orally in the morning and another tablet containing 5 mg Levocetrizine ( For e.g.- Tab. Levosiz
) at bedtime. Take the tablets for 10 days.
Keep the area as dry as possible. Do not keep washing the area. Moisture and sweat will increase the growth of fungus.
Use loose fitting, cotton underwear, preferably boxer shorts so that there is good air circulation and no moisture build up.
Hope this will help you tackle your problem.
It is not a cause for concern or worry as fungal infection of the groin is very common in males.
Wishing you good health.
Dr. Johny Chacko