A stye is a red painful lump on the eyelid caused by a backed-up oil gland.
Eyelids have lots of glands which make a special oil that mixes with tears to keep eyes lubricated. Sometimes these glands get blocked up with old skin bacteria and dead skin cells which causes liquid to build up in the clogged gland.
Discover: the difference between a stye and a chalazion
Styes usually clear up within a week or two, but if your child has reoccurring styes then it is best to visit your local optometrist for further advice as styes can sometimes be due to an underlying skin condition such as rosacea or seborrheic dermatitis.
To treat a stye:
Antibiotic cream or eye drops may additionally be required, which can be discussed with your local opticians.
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