Kyntheum side affects

Hi everyone, I have been injecting Kyntheum for about 3 months and I’m over the moon that my psoriasis is clearing up. But I seem to have developed side affects and I’m reluctant to see my doctor incase they take me off the injections. My feet have become quite swollen and painful and also I have had an outbreak of boil like spots on the inside top of my legs. Has anyone else had this or maybe it’s just unrelated?