Window glazing

I  love to sit by this window in winter as there is lots of light but I can always feel a draft. Last year I put extra draft excluder in the hinge part but today I decided to try the plastic. It fits so well, I haven't stuck it down just in case. It is all down the window including the trickle vent which often feels cold.It feels better already!
My back is still sore from the bites so I rang the doctors yesterday and nothing so I rang the out of hours doctors and had a phone appt at 3pm. I had to go to Boots to collect an antibiotic cream this time, hoping it works. 
No symptoms of a cold or Covid.