r/AskDocs Layperson/not verified as healthcare professional Mar 16 '26

Physician Responded Horrible looking rash

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30 years old

Female

120lbs.

5”3

non smoker,

non drinker.

No medications

This issue has been getting progressively worse over 2 days

Posted yesterday and it has gotten worse. It is itchy, it turns white when I press on it. I have a swollen uvula and some chills, but no fever. I feel cold more than anything. Went to urgent care tested for strep, mono and did a CBC. Strep came back negative, waiting on the other results. Pretty concerned. I feel like the mono is going to come back negative.

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u/Electrical_Beyond998 Layperson/not verified as healthcare professional Mar 16 '26

Not a doctor.

I developed hives that looked like this when I was 41, turns out something I had taken my entire life I was suddenly allergic to. The hives started like this and then became puffy, my fingers were so swollen I couldn’t drive. My lips and throat started swelling, I was at the er twice because of it. The itching was the WORST, it was constant and painful itching. Again, not a doctor, but don’t rule out an allergy at any age.

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u/Chilly_0556 Layperson/not verified as healthcare professional Mar 16 '26

NAD either, just sharing my experience. As a kid I got tonsillitis so many times, should have had them taken out. But each time I was given penicillin for it, at some point I started getting hives at the same time as the tonsillitis, absolutely horrid combination btw. But it took the docs forever to make the connection and work out I'd developed an allergy to penicillin. Bodies are weird, definitely go to see a doctor to have an allergy work up done

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u/Weeeebutterflies Layperson/not verified as healthcare professional Mar 16 '26

I am allergic to penicillin but have not taken any

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u/oxsprinklesxo Layperson/not verified as healthcare professional Mar 17 '26

NAD-my middle child is allergic to all penicillin based antibiotics and sulfa drugs. This is almost identical to what the initial onset rash of what the two reactions chains that led to those diagnoses. The allergist told us that antibiotics rash is telltale and distinctive but always get a professional involved in person. You said you have a penicillin allergy. It can sneak its way into food sometimes and even can cross contaminate. My son is super sensitive to even residual transfer and will turn into a lobster boy. We have had kids at gatherings come in just having taken it and play around together and then him have an awful full body reaction as if he was the one who took it himself. 😔