اذا عندك سعال، حط كمامة قبل ما تفوت عالعيادة.

It is mostly Levantine, but with a slightly medical/formal flavor.

• حط = Levantine put
• تفوت = Levantine enter/go in
• عالعيادة = very Levantine-style contraction
• سعال = understood in Levantine, but a bit more formal/medical than everyday speech

In everyday conversation, many speakers might say كحّة instead of سعال for cough. But on a clinic sign or instruction, سعال sounds perfectly natural.

Here اذا means if, but in practical instructions like this it can feel like if/when.

So the sense is:

• If you have a cough, ...
• or more naturally in context: If / when you have a cough, ...

In Levantine, it is usually pronounced iza.

Because Arabic often expresses having with عند plus a pronoun.

• عند = at / with
• -ك = you (masculine singular here)

So عندك سعال is literally something like:

• there is a cough with you
• or a cough is at you

But idiomatically it simply means:

• you have a cough

This is a very common Arabic pattern:

• عندي سيارة = I have a car
• عندها وقت = she has time

Yes, people will understand it, but it sounds a bit formal or medical.

A native speaker might more casually say:

• كحّة = cough

So:

• عندك سعال sounds like something you might read in a clinic, pharmacy, or public-health message
• عندك كحّة sounds more everyday and conversational

حط is the imperative form, meaning put.

In Arabic, the verb itself already shows who the command is addressed to, so you usually do not need a separate word for you.

Here:

• حط = put / put on
• addressed to one masculine singular person

In this sentence, حط كمامة means:

• put on a mask
• more naturally in English: wear a mask

Other forms:

• حطي = say it to one woman
• حطوا = say it to more than one person

كمامة means mask, specifically a face mask.

It is indefinite here because the meaning is:

• put on a mask
• not put on the specific mask

So:

• كمامة = a mask / any mask
• الكمامة = the mask

If there were a specific known mask, الكمامة could make sense. But for a general instruction, كمامة is more natural.

Its plural is:

• كمامات = masks

قبل ما means before when it is followed by a verb.

Compare:

• قبل الموعد = before the appointment

  • here قبل is followed by a noun

• قبل ما تفوت = before you enter

  • here قبل ما is followed by a verb

In Levantine, قبل ما is a very common fixed pattern for before doing something.

That is a very common Levantine grammar point.

In Levantine, بـ often marks the regular present/habitual form:

• بتفوت = you enter / you go in

But after expressions like قبل ما, speakers often drop the بـ and use a more bare verb form:

• قبل ما تفوت = before you enter

So تفوت here is the natural form after قبل ما.

This is similar to how English changes verb patterns after certain words, even though the systems are different.

تفوت comes from the Levantine verb فات / يفوت, which commonly means:

• to enter
• to go in
• sometimes to pass

In this sentence, it clearly means:

• enter / go into

Yes, it overlaps with تدخل, which also means enter. But:

• تفوت sounds more naturally colloquial Levantine
• تدخل sounds more standard or less dialect-specific

So both are understandable, but تفوت is very natural in Levantine speech.

عالعيادة is a contracted Levantine-style writing of:

• على العيادة
• often pronounced more like عَ العيادة or عالعيادة

So:

• عَ / عال comes from على
• العيادة = the clinic

Together, عالعيادة means something like:

• to the clinic
• and with تفوت, the whole phrase means enter the clinic

This is a good reminder that Arabic prepositions do not always match English one-for-one.

The original sentence is addressed to one masculine singular person.

To one woman:

• اذا عندك سعال، حطي كمامة قبل ما تفوتي عالعيادة.

To more than one person:

• اذا عندكن سعال، حطوا كمامات قبل ما تفوتوا عالعيادة.

Notes:

• حط → حطي / حطوا
• تفوت → تفوتي / تفوتوا
• عندك → عندكن for plural

Also, signs and general instructions often use the masculine singular as a generic form.

Because casual and semi-casual Arabic writing often simplifies spelling.

• إذا is the more careful/formal spelling
• اذا is very common in everyday typing

Likewise:

• عالعيادة is a colloquial written contraction
• it reflects how people actually say the phrase in Levantine

So this sentence mixes:

• normal Arabic spelling habits in informal writing
• colloquial Levantine-style contractions

That is very common in dialect writing.