A pimple on your eyelid usually isn't acne — it's probably a stye, chalazion, or xanthelasma. A stye is a round, red bump that can be treated with a warm compress to drain the pus. A chalazion ...

They may diagnose a stye if the lump is painful or tender to the touch or if you have burning or swelling in one eyelid. If the lump isn’t tender and there’s little to no discoloration in the ...