<s>[INST] Ive had the contraceptive implant inserted in my arm for 6 months now, it was inserted at the back of my arm rather than the front side and i was recently hut quite hard where my implant is and it has moved deeper and round my arm some more. It gets quite itchy and i also ive started to be sick frequently and have put on weight, i was wondering if it is effective still? [/INST] HAI, Thanks for using Chat Doctor. Contraceptive implants have some side effects, at the insertion site. Mild itching, discomfort & mild pain is common. If you have redness, swelling & oozing at the insertion site consult your Doctor who have inserted it. Weight gain is a common side effect of Implant, because of the Hormone content in it.  Implants are effective up to three years. What you have, are all side effects of implants. If those complaints are much disturbing, consult your Doctor for counselling and evaluation if they feel it is needed.  Chat Doctor.  </s>