Is It Normal For Hypodermic Needle Injection?

The hypodermic needle injection bulge is generally normal. The bulge after subcutaneous injection is caused by the accumulation of the drug and the incomplete absorption under the skin. In this case, you don’t need to worry too much. After the drug is absorbed, the small lumps disappear. Generally, no special treatment is required. Just pay attention to observation, it is more common in drug allergy test or tuberculin test. If the drug allergy test causes redness of the mass and lasts for a long time, it is more common in the positive drug sensitivity test. If the mass disappears quickly and the local skin color is normal, the drug allergy test is negative.

After the tuberculin test, pay attention to the size, color, range and local skin conditions of the masses. Note that the local skin performance is different in different time periods. Check them at 48 hours and 72 hours after the skin test. If the tuberculin test is positive, local skin can see enlarged nodules, redness and swelling of the skin, and some blisters may also appear. Therefore, the subcutaneous injection of the bulge needs to be combined with the time period of the bulge, the color of the local skin, and the size of the mass for a comprehensive analysis.

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