лечи́ться

uncommon #6507verbreflexiveimperfective

1.
to undergo treatment, to be treated, to undergo a curemedicine
Я тепе́рь лечу́сь у окули́ста.
I'm being treated by an eye doctor now.
Often with у + doctor (у врача) or от + illness.
2.
to be curable, to be treatable, to healmedicine
Э́та боле́знь легко́ ле́чится антибио́тиками.
This illness is easily cured with antibiotics.
Used of the illness itself, not the patient.

Examples

Она много лет лечится от полиартрита.
She has been receiving treatment for polyarthritis for many years.
Глу́пость не ле́чится.
There's no cure for stupidity.
Триппер лечится курсом антибиотиков.
Gonorrhoea is treated with a course of antibiotics.
Врач сказал, что псориаз лечится долго.
The doctor said that psoriasis takes a long time to treat.
Он лечится в офтальмологической клинике.
He is being treated at an ophthalmology clinic.
Он лечится от цирроза уже два года.
He has been undergoing treatment for cirrhosis for two years.
Вовремя распознанная болезнь лечится легче.
A disease diagnosed in time is easier to treat.
Он лечится только средствами аллопатии.
He is treated only with allopathic remedies.

Note: Stress change.

Imperative
ты	лечи́сь
вы	лечи́тесь

Active present	ле́чащийся	undergoing treatment, being treated, receiving medical care
Active past	лечи́вшийся	the one who was treated, having been treated
Passive present	-
Passive past	-
Gerund present	леча́сь	while doing (present)
Gerund past	лечившись	while doing (past)