I have a small lump on my left calf.  I saw it in april and it was just a lump, not color.  It was almost like a big under the skin pimple but it did not go away.  It is now July and the lump started looking bruised and growing a little and now looks infected around the bruised part.  What do you think it may be?
It could be a blood collection or hematoma which has got infected. Do you remember getting injured in that area before April? You should get an Ultrasound of the area to confirm it. For the infection I would suggest a course of antibiotics like Tab Augmenting 625 mg thrice daily along with Tab Ibuprofen 400 mg thrice daily and warm compresses for a week. If it gets confirmed on Ultrasound, or it shows an abscess better to get it surgically Chat Doctor.  Take care.