I have been on T for 18 months. I haven't had any problems up until about 3 weeks ago. All of a sudden I start itching really bad. It starts on my arms, then my head and sometimes my legs and back. It drives me nuts. I do have allergies but not skin allergies. So my question is has anybody had issues with maybe the oil used in the testosterone? I have been injecting since day one, so I can't figure out why all of a sudden I would be sensitive to the oil. Unless its a different batch? I get little bumps on the areas that start itching, its so weird can't figure it out. My next appointment with my endo isn't until June, s I guess I have to stick it out until then.