What should be applied to a swelling from a tick bite? - briefly
Clean the bite with mild soap and an antiseptic, then reduce the swelling by applying a cold compress and a topical corticosteroid or antihistamine cream.
What should be applied to a swelling from a tick bite? - in detail
When a tick bite causes a localized swelling, begin with thorough cleansing. Wash the area with mild soap and water, then rinse with an antiseptic solution such as povidone‑iodine or chlorhexidine. After drying, apply a topical antimicrobial—e.g., bacitracin, mupirocin, or a 1 % silver sulfadiazine cream—to reduce bacterial colonization.
If the reaction is inflamed or itchy, a low‑potency corticosteroid ointment (hydrocortisone 1 %) can be used to diminish erythema and edema. For systemic itching, an oral antihistamine (diphenhydramine, cetirizine, or loratadine) may provide relief.
Maintain the dressing for 24–48 hours, then replace with a clean, dry bandage if the wound remains open. Monitor the site daily for signs of infection—purulent discharge, increasing pain, spreading redness, or fever. Should any of these appear, seek medical evaluation promptly.
Because tick bites can transmit pathogens, assess the risk of Lyme disease or other infections based on geographic exposure and tick identification. If the tick was attached for more than 24 hours, consider a single dose of doxycycline (200 mg for adults) after consulting a healthcare professional. Document the bite date, duration of attachment, and any systemic symptoms such as headache, fatigue, or joint pain.
In summary, immediate cleaning, topical antimicrobial, optional corticosteroid for inflammation, antihistamine for itching, and vigilant observation constitute the standard protocol for managing swelling after a tick bite.