Hello,
Thank you for your query at DoctorSpring.com
As per your description and the picture,it looks like a Thrombosed haemorrhoid.
At this stage,it will not respond to medical treatment.
I prefer to give an incision and relieve the swelling and pain.
Please follow your doctor's advice and proceed.
You should take high fiber diet, plenty of liquids, eat fresh fruits and vegetables. Your stool should be soft.
Once a swelling of this size is seen,Surgery is the only option.
Wish you good health and speedy recovery.
Regards.