I am also a bit concerned now.This is certainly not the time of the year for mosquito bites. It is also unusual for fleas to bite a baby on the side of her head and the rash does not sound like that caused by flea bites. One kind of bite that could do this is a tick bite. Tick bites can cause a rash,but tick bites are also unusual at this time of year. It is very rare indeed for a baby who is not crawling yet to get bitten by a tick. A strong possibility is a spider bite and this can certainly result in a rash as you describe here. It would be best to take your baby to be seen by a paediatrician even if you have to attend an after hours paediatric clinic.
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