How long does it take for deep vein thrombosis to go, is it normal for the swelling to get worse? Thankyou

A week wittreatment . Hoping you have started on anticoagulation and you have therapeutic range, keeping your leg vested, usually within a week the swelling should go away. You need to be maintained on anticoagulants for 6 months., keep monitoring your anticoagulant parameter.
Yes increased. Swelling possible...It can take 6-12 weeks with appropriate anticoagulant ion.